CADILLAC IMAJ TAKES THE FUSION OF ART
& SCIENCE TO THE LOGICAL NEXT STEP

 

AutoWorld.com - David Lee  - The Cadillac Imaj, a high-tech concept car revealed at the 2000 Geneva Auto Show, extends Cadillac’s philosophy of blending art and science to its logical next step: an all-wheel-drive ultra-luxury sedan with exhilarating performance and unprecedented technological applications.

With its crisp lines and sharp angles, Imaj is a direct descendant of Evoq, the concept roadster introduced in 1999 and the first embodiment of Cadillac’s vision of art and science. Imaj takes its lead from Evoq in giving further tangible form to Cadillac’s vision to be a uniquely American, global automotive leader in both design and ingenious technology.

"Imaj extends Cadillac’s core technical values of precise all-weather-control, active safety and infotainment to an ultra-luxury sedan," said John F. Smith, GM vice president and Cadillac general manager. "Imaj changes the traditional ultra-luxury formula of heavy, long and consumptive to agile, useful and approachable. It has the flexibility, features, and power to transform from being a chauffeur’s car during the week, to a driver’s car on weekends."

On the outside, Imaj’s faceted, sheer forms exude a diamond-like quality, underscored by knife-edge coachwork, from its louvered roof panels to its integrated front and rear aero panels.

Underneath the hood, Imaj features an updated version of the supercharged Northstar V8 engine that debuted on the Evoq. Featuring a liquid-to-air intercooler and continuously variable valve timing, the enhanced Northstar delivers 425 horsepower. The power is fed to all four wheels through an all-new five-speed automatic transmission.

Imaj also features Cadillac’s acclaimed Night Vision system, which works both in front and the rear, to enhance the driver’s field of vision behind the car. Obstacle alert sensors and rear vision cameras, which replace the mirrors, also enhance rearward mobility.

Aluminum space frame construction provides low mass and a rigid chassis. The Goodyear EMT run-flat tires, 20-inch magnesium wheels, Delco ABS and traction control and Brembo brakes are actively managed by an advanced, next-generation StabiliTrak chassis control system.

Every detail of Imaj was designed to enhance its role of being the perfect vehicle to drive and to be driven in.

Inside its 5.1-meter length, Imaj expands the concept of luxury to include the artful integration of advanced technology. The executive on the go can climb in the plush rear seat of Imaj, with first-class airline-like accommodations, and immediately get to work. This includes reaching business contacts on a hands-free cell phone, retrieving e-mail or working on documents.

When it’s time to leave work behind, you can leave the chauffeur behind as well, and escape into the mountains or down a coastal highway.

Adjustable pedals, seating, steering and head-up display combine with steering wheel mounted controls and shift-by-wire gear selection to create the quintessential driver-in-control environment. Adaptive cruise control manages following distances at highway speeds, while front- and rear-facing radar ease parking in close quarters.

Vehicle access is controlled by e-lock, a fingertip-based security system. The cabin is further secured by smart air bags, including side-impact air bags. Every seat is fully reconfigurable, featuring in-seat heating and ventilation. Rear seats recline and offer footrests for comfortable support. Each seat has its own environment controls, and e-mail access and an individual LCD screen with DVD capabilities, navigation and entertainment, developed by IBM and Delphi.

The Bose audio system incorporates headrest speakers. GM’s OnStar is on board, as are four individual cellular phones. All information is routed through the Communiport central server, which debuted on Evoq.

Imaj was designed and built by GM’s Concept Design studio in Birmingham, England, led by concept vehicle design director Simon Cox, with support from the North American Cadillac design studio in Warren, Mich., led by Cadillac design manager Tom Kearns.

Combining a European design perspective with Cadillac’s uniquely American brand character reinforces Cadillac’s move toward being a global luxury brand.

To reinforce that, in addition to partnering with IBM, Delphi and Bose, Cadillac has teamed with world-renowned Italian jeweler Bvlgari, which will provide accompanying modular aluminum luggage, an exclusive fine clock and distinctive instrumentation for the concept vehicle - acknowledging the tastes of potential owners.

Bvlgari is known worldwide for its powerful and contemporary designs. It has more than 100 stores around the world, specializing in fine jewelry and watches, eyewear, silk scarves and ties, leather goods, and perfumes.

Offering such high-end items is not new to Cadillac. The 1957 Eldorado Brougham included a personal vanity kit and a small spray bottle of Arpege perfume. The opulent Eldorado Brougham, with its ultra-high degree of luxury and its many exclusive technological advancements, is the spiritual progenitor of Imaj.

"Much like the fashion industry’s ‘signature label’ products, Imaj would be very exclusive and limited," said Wayne Cherry, GM vice president and director of its Design and Portfolio centers. "It’s designed to be a high-end flagship for both Cadillac and General Motors, pushing the limits of performance, comfort and communications technology."

Design: Continuing The Drama

The bloodlines of a Cadillac run long and deep, and trace a past that contains some of the most dramatic designs in automotive history.

In 1933 the first drive-in movie theater in the United States opened in Camden, N.J. The car as a cultural force on American society was here to stay, and Cadillac continued pushing the evolution of the automobile forward. The 1933 Series 355C sedan was the epitome of period luxury, its passenger compartment decked with silk curtains, and real wood trim with German silver inlays. The car featured rear-hinged rear doors and aircraft-inspired design, particularly in the stylized headlights, the streamlined, skirted fenders and the "Vee-ing" of the radiator grille. This was the first time an automaker had installed wing windows or vent windows, called "draft-free ventilation" at the time, which remained an automotive staple for a generation.

The car featured an adjustable suspension, and was powered by Cadillac’s 115-hp V8 mated to a three-speed Syncro-Mesh transmission.

The ’33 V8 was a vehicular triumph in its day, a superior blend of the principles of art and science. Apply those same principles to a futuristic four-passenger vehicle today and you have the new Cadillac Imaj, a design and technology showcase on magnesium wheels.

"Obviously Cadillac has a great deal of heritage," said Simon Cox, concept vehicle design director of the GM Concept Design studio in Birmingham, England. "With Imaj, the point was to create a car that was unmistakably a Cadillac but not retro. We wanted to recreate the drama of older Cadillacs, echo their technological advancements, and create a piece of modern art, rather than a cold, technological form."

Drawing Board To Show Floor In Months

The call went out in mid-1999 to come up with a stunning four-door, four-passenger upscale sedan to complement the Evoq two-seater, in time for the world unveiling at the 2000 Geneva show. The aim was more challenging than simply to create a four-door Evoq; it was to design a new car from the ground up that would share Evoq’s unique form vocabulary. The initial concept was conceived in Detroit, and the design of Imaj was carried out in England, with support from Detroit.

"Imaj is not purely a design exercise, and not simply an engineering exercise—it’s the whole package," Cox said. "From the word go the idea was to create our own package, so everything was done with design in mind—it wasn’t just shoehorning our design over an existing package. We designed a long wheelbase, and packaged the engine as tightly as we could, all to optimize interior space.

"We have taken elements from GM’s global resources—platform and suspension components, for example—and reengineered them to fit our package, and redesigned them for weight-saving, machined from aluminum rather than steel."

Cox says Imaj was more designed from the inside out than from the outside in. "That’s the trend these days, because people expect so much content in their cars. So we tried to design an interior package in a logical way, with a high degree of emotion and drama on the exterior."

Every Inch A Cadillac

Viewed head-on, Imaj spells Cadillac immediately, and not just because of the familiar wreath and crest. The horizontal grille is set off by vertical headlights and xenon high-performance lamps that add an air of aggressiveness.

Whereas Evoq featured a strong defining line running the length of the car’s beltline, Imaj wears a strong line running dramatically off the front fenders up the A-pillars and along the roofline and down to the vertical taillights. It complements Imaj’s passionate stance atop 20-inch (508 mm) performance tires and large magnesium wheels. The vehicle has a long, 121.5-inch (3085 mm) wheelbase, with short overhangs front and rear, to optimize interior space and create a compact exterior look. The small rear glass area emphasizes the Cadillac form.

Imaj was designed with maximum aerodynamic performance in mind. It has active aero panels front and rear to provide downforce—its underbody is clean and its rear valence smoothed off, all to improve aerodynamics.

The body is painted an elegant silver formulated especially for Imaj. It is a slightly brighter silver than Evoq, to offer a more high-tech look to the new concept car.

Louvered Electrochromatic Glass Roof

The roof itself is made almost entirely of electrochromatic glass, which is opaque and secure when switched off. At the flick of a switch, the glass becomes see-through and lets the sun shine in. The roof is louvered, and each individual passenger can control the louvers above each seat, and can open them to let the fresh air flow freely through.

Imaj’s trunk is large, with a special extendable floor that powers out over the bodywork for ease of loading and unloading. The trunk lid lifts vertically and moves around the rear glass. It is power-operated, as are the rear doors, which are rear-hinged right onto the bodywork for easy ingress and egress. The front doors are hinged on the A-pillars and also swan-neck open forward before swinging out. All the doors lock and unlock using the e-lock fingertip system.

Inside The Machine: Computer-Age Comfort

The exterior provides the drama, but the interior of the Imaj is also a showcase for a wealth of advanced technology features, which will be detailed later, and also for accommodations previously available only in the first-class cabin of airliners. All the seats are fully reconfigurable, and each features individual climate and sound and video controls with headsets and cell-phone ports (for safety reasons, there is a driver cut-off switch to disable the individual seats’ switchgear). Each seat is heated and ventilated to provide just the right atmosphere.

The driver’s command seat features adjustable pedals and steering column. For the chauffeur set, the rear seats have adjustable footrests, and can recline almost horizontally, in case you’ve just come off a long flight and could use a nap rather than working. The rear volume offers unprecedented space for personal comfort, storage of belongings and ample workspace.

Luxurious Materials

The dominant interior color is a light magnolia, contrasted with dark blue accents. A combination of brushed aluminum and aluminum brightwork on the A-pillars, doorsills and other spots provide a high-tech look, complemented with touches of light Bird’s Eye Maple wood, as an eyebrow over the instrument panel or along the bottoms of the doors, for example. A healthy helping of Scottish Bridge of Weir leather completes the interior package with elegance.

Bvlgari Accoutrements

For inclusion in the vehicle, Bvlgari has manufactured a special set of modular aluminum luggage, which mimics the form of Imaj. The Italian jeweler and maker of luxury products has also provided an exclusive fine clock and distinctive instrumentation for Imaj.

Nicola Bulgari, vice-chairman of the Bvlgari Group, himself an avid collector of American cars, said, "I am proud to lend Bvlgari’s long heritage of craftsmanship and design to create a truly luxurious car that stands at the pinnacle of its sector."

Bvlgari is known worldwide for its powerful and contemporary designs. It has more than 100 stores around the world, specializing in fine jewelry and watches, eyewear, silk scarves and ties, leather goods and perfumes.

Offering such high-end items is not new to Cadillac. The 1957 Eldorado Brougham included a personal vanity kit and a small spray bottle of Arpege perfume. The opulent Eldorado Brougham, with its ultra-high degree of luxury and its many exclusive technological advancements, is the spiritual progenitor of Imaj.

"Much like the fashion industry’s ‘signature label’ products, Imaj would be very exclusive and limited," said Wayne Cherry, GM vice president and director of its Design and Portfolio centers. "It’s designed to be a high-end flagship for both Cadillac and General Motors, pushing the limits of performance, comfort and communications technology."

Art & Science: Long History Flows To Bright Future

The last of the great pre-war Cadillacs was the 1941 60 Special, thought by many to be the high point of a styling theme originated in 1938 by chief designer Bill Mitchell and the GM styling staff. The egg-crate horizontal grille, a staple of Cadillac heritage, traces its roots to the ’41 60S.

The car’s exterior sheet metal is streamlined and flowing, while the interior exudes classic American art deco style, seen in the stylized door handles, seat trim and roll-top rear ash receivers. For the first time, the pontoon front fenders extended into the front doors, lending a look of flowing speed and strength. That flow starts at the headlights, which are fully integrated into the leading edge of the fenders. Its long wheelbase of 126 inches created a luxurious, spacious cabin.

There was science along with the art. Two significant options were available for the first time on Cadillacs with the ’41 60S: Hydra-matic fully automatic and air conditioning. Its V8 was rated at 150 horsepower and produced a top speed of 100 mph. The 60S was an exclusive five-passenger, four-door sedan, the last of a classic era of car design and one that maintained a standard of excellence still present today, in, among others, Imaj.

"The goal of the Imaj project was to create a visually dramatic vehicle, following the lead of Evoq, while at the same time offering the utmost in modern technology, including communications and infotainment systems," said Tom Kearns, Cadillac design manager.

At the heart of the Imaj technology story is its connectivity—its computer-controlled brain is equipped with every modern device required to meet all professional and infotainment needs.

Technology-Driven

GM worked with its partners at Delphi Delco Electronics and IBM to provide the revolutionary technology present in Imaj. The Communiport system is the "main frame" of the system, integrating complete full-function use of many different high-tech features.

At the core of the system are three IBM 10-gigabyte Thinkpad 600Es linked by a 10/100 Mbps ethernet LAN to monitors and other peripheral devices to provide infrastructure for delivery of a wide variety of information sources. Those include cellular phone, fax and e-mail, as well as navigation information and local information. The infotainment system also provides for audio MP3-file play, and DVD video, as well as the ability to download audio and videos for later playback. Its office capabilities include a calculator with currency conversion functions, word processor, day planner and Internet browser.

Hands-Free Internet Browsing

The mobile Internet browsing capability, with e-mail and text downloading, uses the new wireless application protocol (WAP) and wireless mark-up language (WML). WAP is an open, global specification that allows mobile Internet users with wireless devices to easily access and interact with web sites instantly. Since HTML, the hypertext language of the Internet, is not convenient for use with "thin client" wireless mobile applications, a WAP browser with wireless markup language (WML) is used on telematics applications. The WAP browser with WML is designed to accommodate applications with smaller, more limited displays like cell phones and vehicle multimedia systems, according to Mark Hogan, vice president, e-GM Group.

"Communiport offers a large color display as well as voice activation and text synthesis for audio read back. When the two are combined with WAP with WAL-condensed data, you have an Internet access capability that’s fast and virtually hands-free," Hogan said.

Voice Activation And Individual Monitors

Menu navigation for all of the communication system’s various features is voice-activated. E-mails can be read to the car’s occupants through the system’s text-to-speech feature. A voice memo device allows for voice messages to be recorded, stored and played back later. An infrared port function allows handheld devices such as portable phones and personal data assistants to exchange information. The CD/CD-ROM drive plays music CDs and reads CD-ROM databases such as maps. The system’s compact flash slot allows for expanded memory and software upgrades.

The central Communiport unit and monitor store neatly in a covered stowage space when not in use. All passengers have their own individual LCD display monitors, with two for the rear passengers mounted on the backs of the front seats. Each monitor has 800x600 resolution at 16-bit color. All of the equipment is stored out of sight in Imaj’s lush interior when not in use.

"We wanted to combine the art and science feelings on the interior," said Simon Cox. "Our aim was to have the technology there but not to have a look that ‘shouts’ about it. All of the equipment hides away so the car has a different look when the technology is up and running versus when it’s idle."

Premium Sound, All Around

Having a world of information and entertainment at your fingertips has more impact when the very sound of it surrounds you. The car’s audio is provided by The Boseâ Music System, which offers personal surround sound—five discrete surround sound channels to each listener. It’s the first Bose automotive music system with surround sound capability.

Two Bose-exclusive technologies are implemented for the first time in Imaj: Videostageâ digital signal processing technology allows each listener to enjoy a five-speaker surround sound experience, and TrueSpaceä digital signal processing technology enables small, closely spaced speakers to generate a wide, large, realistic soundstage. From the listener’s perspective, the soundstage created appears wider and larger than the confines of the vehicle. Thus, the vehicle is "opened up," and the three-dimensional aspect of surround sound comes alive.

In addition, the system includes the latest Bose speaker technologies. Jewel Cubeâ speaker design delivers rich sound from just 2-inch speakers. Two of the 2-inch Jewel Cube speakers are installed in each of the four headrests. The Acoustimassâ bass module is mounted under the rear package shelf. There are also three 2.5-inch wide-range speakers in the car’s instrument panel, two 8-inch Ndâ woofers in the front doors, two 3.5-inch wide-range speakers in the B-pillars, and one 3.5-inch wide-range speaker in the rear seat console. That’s 17 speakers of premium audio surround sound that will sound terrific whether you’re driving or being driven.

Night Vision Provides Enhanced Views, Both Front And Rear

Imaj is equipped with Cadillac’s unique Night Vision system for both forward and rearward views. Night Vision utilizes an infrared camera developed by defense contractor Raytheon System Co. Mounted in the front and rear of the car, these sensors help drivers see objects at night that are out of visible range. The camera creates pictures based on heat energy emitted by objects in the viewed scene. These pictures are presented in monochromatic form in a head-up display (HUD). Warmer objects—such as humans, animals or other vehicles—appear white whereas cooler objects appear dark. The images on the windshield’s HUD toggle back and forth from Night Vision’s front and rear views as the car’s gears shift from forward to reverse.

The head-up display projects an image measuring 6.7 inches (170 mm) vertical by 16.7 (425 mm) inches horizontal. The image, which is projected near the edge of the hood, is a high-resolution color display presenting a reconfigurable selection of key driver data. Those data can include speed, turn signals, safety belt and high-beam reminders, vehicle status data, as well as cell phone, message and navigation information. Drivers can adjust for both brightness and vertical positioning, putting in the best location for a quick glance at the image without refocusing or moving their eyes from the road.

Collision Avoidance

From infrared sensors to radar, Imaj uses all the technology at its disposal to make the ride safe and secure. Frontward and rearward obstacle sensors use radar to alert the driver of nearby impediments, which helps when parking in close quarters. Delphi’s FOREWARNâ Collision Avoidance System is a multiple feature family of object detection systems. The FOREWARN goal is to provide an "electronic cocoon" around the vehicle perimeter.

The forward looking system is designed to increase the driver’s awareness of objects in the vehicle’s forward path. Blind spot warning is a collision avoidance system designed to enhance driver awareness of "blind spots" during lane changes. The system recognizes objects in detection zones and triggers visual and/or audio alert signals. Finally, the back-up aid systems use radar and ultrasonic sensors mounted in the rear bumper area to detect objects behind a vehicle and help drivers avoid backing into them. It’s designed to protect moving or stationary objects within six meters.

OnStar on board

Imaj also includes OnStar 2.6 Virtual Advisor, the latest version of GM’s revolutionary information and communications service. OnStar automatically calls for help in case of air bag deployment. In the event of a theft, authorities are notified and the car’s location is automatically tracked. It also can be used to summon routine or emergency assistance, to get routing assistance or for a variety of concierge services, such as ordering flowers or making dinner reservations.

 

High Value on Safety

One of the core values of Cadillac that resonates in Imaj is providing a high degree of safety for the car’s occupants. That’s why the car was conceived as an all-wheel drive sedan from the very outset. Its large, 14.96-inch (380 mm) diameter Brembo brakes are enhanced by an antilock braking system. Those brakes are charged with stopping Imaj’s substantial 20-inch 255-40x20 Goodyear EMT run-flat tires, which wrap around 9-inch-wide magnesium wheels and provide a luxurious ride. Front air bags are installed, and side air bags protect all four occupants. There’s also an electronically controlled parking brake.

As on Evoq, a rear-facing camera mounted on the tail and two more that fold out from the sides where conventional side mirrors might be provide a clear, adjustable view of what’s behind you. Entry into the vehicle is guarded by an e-lock system, which is configurable to be activated by the fingertip.

Northstar Power

The heart of Imaj’s powertrain is its 4.2-liter supercharged V8, known as the SC4200, which produces 425 horsepower at 6400 rpm and 400 lb.-ft of torque at 4000 rpm. Improvements were made to the supercharger and its air induction system to increase the horsepower from the Evoq engine. Further developments of GM’s patented supercharger/intercooler system, coupled with refinements to the inlet and exhaust ports, enable improved airflow and boost horsepower. The engine is mounted longitudinally, to create better packaging and accommodate the all-wheel-drive system.

The all-aluminum V8 has four camshafts with continuously variable valve timing, low-friction roller cam followers and four valves per cylinder. The engine control system features closed-loop fuel control via mass airflow sensor and four oxygen sensors, platinum-tipped spark plugs with individual ignition coils and four catalytic converters.

The Northstar V8’s refined power is fed to all four wheels through a five-speed automatic transmission, the first such unit in a GM car. The automatic transmission is fully electronically controlled, with a high torque capacity and an innovative low-mass design, thanks to packaging and materials refinements. The advanced all-wheel-drive system uses sensor technology to automatically determine how much power should be directed to the rear, or to all four wheels.

The engine and gearbox are mounted low to reduce center of gravity. This enhances the vehicle’s dynamics, and also allows a low hood line. This is achieved in a novel way in Imaj by positioning the front axle cross shaft between the engine and gearbox instead of under the engine crankshaft as it is on most all-wheel-drive vehicles.

The powertrain and drive system is expertly managed by the next evolution of StabiliTrak, the most advanced integrated stability control system in the world. Sensors in the vehicle measure steering angle and other inputs from the driver, to determine what he or she wants the car to do. If the car isn’t responding appropriately, a computer selectively applies the individual brakes to help keep the car on the intended course. The new StabiliTrak system also features active steering effort compensation, which temporarily raises steering effort in low-traction or emergency-maneuver situations, and side-slip rate control, which improves stability and lateral traction if significant side slip is detected by the lateral acceleration sensor.

Aluminum Space Frame Chassis

Underneath Imaj’s comely skin is a high-tech aluminum space frame chassis. The extruded aluminum space frame components significantly reduce weight from a similarly structured steel frame, yet provide greater rigidity and improved safety. That results in superior handling and performance.

The aluminum space frame also functions as a dramatic visual element for Imaj, with some sections exposed along the A-pillars, roof rails and doorsills. "People have had aluminum space frame chassis before, but then hidden them with the body," Cox said. "We decided to bring the space frame to the fore as a visual element."

MagneRideä Suspension Control Technology

Imaj also features Delphi’s MagneRideä suspension control technology, the industry’s most advanced variable damping system and of the links to complete vehicle chassis integration. MagneRide is a semi-active suspension control system that optimizes vehicle ride and handling by providing continuously variable road sensing suspension based on road and driver inputs.

The system uses Delphi-developed Magneto-rheological (MR) fluid, which enables lightning-quick response and a valveless damper design, resulting in superior levels of performance, virtually silent operation, and the elimination of electromechanical valves. In operation, the MagneRide system’s electronic control unit continually sends electrical currents to electromagnetic coils housed in the dampers. The currents dictate the MR fluids’ yield stress, which in turn determines damping resistance.

The system’s damping actuators are innovative struts or shock absorbers, which are gas-charged, monotube designs without valves or any other small moving parts. Current applied to an electromagnetic coil inside the damper’s piston controls the flow of the MR fluid in the damper. The valveless dampers provide a smooth flow of the MR fluid that is very quiet, unlike valve-based systems that are prone to noisy, turbulent flows in the dampers. The dampers developed for MagneRide can change damping levels as much as 1000 times per second with no lag, if necessary, and they are extremely stable and insensitive to contamination.

Even as a stand-alone system, MagneRide would offer a substantial improvement in ride quality, vehicle handling and stability over conventional systems. Linked to the StabiliTrak system, it helps provide Imaj with unprecedented levels of vehicle stability control and active safety.

Using Art & Science To Meet Customer Needs

In 1957, at the height of America’s love affair with the automobile, Cadillac introduced something very special: the Eldorado Brougham. Like Imaj, the Brougham was conceived as a limited-production, ultra-luxury sedan of uncompromising quality and convenience. It exemplifies the refusal to be second best that Imaj strives to maintain. All the features were standard, including air conditioning and either karakul (wool) or mouton (sheepskin) carpeting. Just 704 vehicles were produced in the 1957 and 1958 model years.

The ’57 Eldorado Brougham, also like Imaj, was a car ahead of its time. The seemingly endless list of innovations included a brushed stainless steel roof, memory seating, automatic trunk opener and closer, transistor radio with automatic antenna, automatic door locks, quad headlights with automatic high-beam dimming, polarized sun visors and chrome-plated aluminum bumpers.

One look at the stylized tailfins and the pillarless four-door design shows the art, and as for science, there was a 325-horsepower V8 and a revolutionary air suspension system. Also included in the glove compartment was a personal vanity kit containing a tissue dispenser, mirror, compact with powder puff, comb, lipstick, six magnetic-base chrome cups, cigarette case and a small bottle of Arpege perfume. The backseat "workspace" featured a rear center armrest containing a beveled glass mirror, note pad and mechanical pencil. All of these features are examples of Cadillac seeking to meet and exceed the customer’s every want and need, as much as offering OnStar is today.

It is the spirit of comfort, luxury and performance of the Eldorado Brougham that spawned Imaj, the latest incarnation of Cadillac’s vision of art and science.

"Although Imaj is a concept car," Tom Kearns said, "it represents our effort to try to create a vehicle that would foreshadow a logical step in the marketplace for Cadillac. And it was done from a global perspective."

Imaj represents the logical extension of the Evoq’s design form vocabulary in a four-door application, but it does so with an unflinching appeal to the emotions. It both evokes and provokes. Its drama, crisp lines and diamond-like forms are sure to draw attention and create discussion.

"Cadillac is driven to be the American luxury brand with worldwide appeal," said John F. Smith, Cadillac general manager. "Our vision of art and science was introduced with Evoq, and it is further enhanced with the debut of Imaj. Its design communicates innovation, performance and flair for the dramatic. It’s certainly a vehicle that uniquely expresses Cadillac’s technology and elegance."

Cadillac Imaj Vehicle Specifications

EXTERIOR

Vehicle type Four-passenger, four-door luxury sedan, with electrochromatic louvered glass roof

Overall height (in/mm) 55.9/1420

Overall length (in/mm) 199.0/5100

Overall width (in/mm) 74.8/1900

Wheelbase (in/mm) 121.5/3085

Track (in/mm) 64/1628

ENGINE

Type 4.2-liter 32-valve supercharged Northstar V8

Engine block Aluminum with iron inserted main bearing bulkheads

Cylinder heads Aluminum

Valvetrain Four camshafts with continuously variable valve timing, low friction roller cam followers, four valves per cylinder

Cam drive Roller chain

Induction system Integral supercharger, liquid-to-air intercooler, intake manifold, and boost bypass valve; GM-patented

Engine control system Closed loop fuel control via mass airflow meter and four oxygen sensors, platinum-tipped spark plugs with individual ignition coils, four catalytic converters

Displacement (cu in/cm3) 258/4228

Bore x stroke (in/mm) 3.52 x 3.31/89.5 x 84.0

Compression ratio 9.0:1

Horsepower 425 bhp (317 kw) @ 6400 rpm

Torque 400 lb.-ft (542 Nm) @ 4000 rpm

DRIVELINE

Type Longitudinal front engine, all-wheel drive

Transmission Five-speed fully electronically controlled automatic, Performance Algorithm Shifting system

CHASSIS

Structure Extruded aluminum space frame chassis

Suspension, front Modular subframe-mounted; double unequal length aluminum lightweight arms; high-mounted top arm for enhanced geometry control and reduced road noise;

long monotube damper with co-axial coil spring and lower yoke to straddle the front half shaft

Suspension, rear Modular rubber mounted subframe carries rear suspension and differential for reduced road noise; multi-link aluminum lightweight arms with adjustable toe control link; compact coil spring and monotube damper, minimal intrusion into the cabin and luggage space

Steering Power assisted speed variable rack and pinion (ZF Servotronic); turning circle, 37’ (11.3m); electric height and tilt-adjustable steering

Brakes Brembo aluminum lightweight calipers, 14.96-inch (380mm) diameter ventilated discs, front and rear;

front to rear brake split, ABS, vacuum servo assistance;

separate park brake calipers, electrically actuated but mechanically locked to "fail safe"; electric fore and aft brake pedal adjustment

Stability enhancement Four-channel StabiliTrak yaw control system

Wheels and tires 20" magnesium wheels front and rear; Goodyear EMT Runflats 255-40x20. - Autoworld.com

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