Sixth generation Corvette C6

Press Release

Power, Passion and Precision in Coupe and Convertible form

 

The sixth generation of the Corvette was born less than a year ago and in its short life the car has already convinced a lot of customers. How? With a combination of power, passion and precision. The Corvette comes either as a coupe or a convertible and combines high performance with great style, value and quality. On top of that, the Corvette delivers surprising levels of comfort for daily driving. New for the 2006 model is a six-speed Paddle Shift automatic transmission.

 

The sixth generation Corvette is more competition-influenced than any previous Corvette, but from the very beginning of this generation, engineers envisioned a car at home in virtually any environment. The goal was a performance car that would be more agile, "placeable" and "tossable" on the race track, while also more comfortable in daily driving. Raw performance is combined with improved ride comfort, a precisely built and technically sophisticated interior and contemporary body.

 

Distilling the dimensions of Corvette into a smaller package, an overall length of 4435 mm and an overall width of 1844 mm is achieved, 125 mm shorter and 25 mm narrower than its predecessor. More efficient packaging and a wheelbase that is 30 mm longer, maintain interior space and class-leading cargo space that can swallow two golf bags. The Corvette's overall dimensions are in fact similar to those of the Porsche 911, another respected performer on the road and track.

 

With a maximum curb weight of 1508 kg (Coupe) and 1517 kg (Convertible) the sixth generation Corvette is significantly lighter than its predecessor. The result is that the car is capable of 300 km/h and reaches zero to 100 km/h in 4,3 seconds.

 

At 0.28 coefficient of drag, this Corvette is the most aerodynamic Corvette ever, with improved anti-lift characteristics that improve high-speed stability. The ability to keep lines and surfaces smooth was supported by technology. For example, the Keyless Access system replaces traditional mechanical door and hatch handles with solenoids and electronic actuators.

 

 

Removable roof panel

 

The Corvette Coupe offers a removable roof panel, which can be stowed under the hatchback in the luggage area. The panel is 15 percent larger than previous models yet weighs just 0,45 kg more. Painted body color as standard, it is available with an optional tinted clear panel.

 

The Corvette Convertible features a power-operated soft top, the first offered since 1962. It utilizes a single-button control and completes the cycle in just 18 seconds. Five-layer fabric materials conceal the underlying structure for a good top-up appearance, while helping preserve the car's excellent aerodynamics and interior noise levels. As the Corvette was designed from the outset to be an open car, there is no compromise in ride, handling or performance compared to the Coupe.

 

Classic 'egg crate' grille and exposed headlamps

 

The Corvette combines classic cues with an expressive new design. While the styling team used the latest advanced computer-aided design techniques, they relied heavily on traditional hand sculpting. Sculptors pored over every millimeter of the car's surface. The aerodynamic development combined digital simulations, Corvette Racing experience and more than 400 hours of wind tunnel testing. The driving force behind the exterior was to keep it fresh, yet distill the passion exemplified by the classic mid-year Corvettes of 1963-1967.

 

 

One key design feature is the classic 'egg crate' grille, reminiscent of Corvettes from the '50s, which is combined with the first use of exposed headlamps since 1962. They combine with the grille to create a stronger "face" on the car. Fixed HID Xenon low-beam and a tungsten-halogen high-beam projector lens lamps additionally offer the advantages of lower weight, less complexity and superior lighting performance.

 

Larger wheels (18-inch front, 19-inch rear) are topped by dramatic fender forms. The front fenders are both more rounded and more sharply defined. They are higher by 10 mm and also feature a beltline crease. Combined with the shortened front overhang, the fenders contribute to a more taut, purposeful front-end design, while bold, simple, rear end styling emphasizes the shortened rear overhang. Four round tail lamps continue as a Corvette rear styling trademark. Four circular exhaust tips are also integrated into the rear diffuser and pick up the circular theme established by the tail lamps.

 

Interior

 

A Corvette hallmark, the dual cockpit design theme, continues in the interior, with improved materials, craftsmanship and functionality. More sophisticated contours and leather surfaces that are richer and softer add tone, along with pleasing details including a two-layer composite seat frame that gives the seats outstanding support, especially in the stiffness of the seat backs.

 

Among many electronic technologies are GM's Keyless Access with Push Button Start technology allows access by detecting the proximity of the key fob. The system both unlocks the doors and allows it to be started. An AM/FM radio with in dash 6-CD changer is standard. New technology enhances conventional radio reception despite the antenna being completely concealed within the windshield glass. Optional features include a DVD-navigation system with voice guidance.

 

A menu-selectable head-up display can be projected onto the windshield in the line of sight on the road ahead, allowing the driver to focus on driving while still being able to monitor vehicle speed and other critical vehicle information. There are two settings: Street and Track; each setting is pre-programmed to display information, including g-forces, that is relevant for each respective - and very different - situation.

 

Small-block V8

 

The LS2 6.0-liter small-block V-8, the standard engine in the Corvette, is based on GM's Gen IV small-block family of engines and raised the bar for performance in the Corvette. With peak output levels of 404 horsepower (297 kW) and 546 Nm of torque, it has 60 horsepower more than the previous model.

 

An aluminium block casting incorporates provisions for external knock sensors and revised oil galleries to improve serviceability. The cylinder bore diameter increased to 101,6 mm, increasing displacement from 5,7 to 6,0 liters and the camshaft lift increased to take advantage of increased cylinder head flow, while the engine's compression ratio is raised to 10.9:1 and the "redline" raised to 6500 rpm.

 

Transmissions

 

The Corvette uses an upgraded and revised Tremec T56 six-speed transmission, which is offered with revised gearing with the Z51 Performance Package. To increase durability in sustained high-speed situations a transmission cooler is fitted. The Tremec six-speed manual features improved shifting characteristics thanks to numerous upgrades, including synchronizers that reduce travel by 10 percent, and a redesigned shift lever. The Tremec transmission is available with two sets of ratios. The more aggressive gear set is reserved for Corvette's standard Z51 Performance Package and is tailored with numerically higher gears to improve acceleration.

New six-speed Paddle Shift automatic transmission

 

The new electronically controlled six-speed Paddle Shift automatic transmission features clutch to clutch operation, manual control shift operation and an integrated 32-bit electronic controller. A wide, 6.04:1 overall ratio helps deliver exciting acceleration performance along with excellent fuel economy.

 

The six forward gears have smaller “steps� between them, which enhances the feeling of performance and smoothness. The smaller steps also enable a steep, 4.02:1 first gear, which provides an improved-performance launch feel when compared with the previous four-speed automatic’s 3.06:1 first gear. There are two overdrive gears: a 0.85:1 ratio in fifth gear and a 0.67:1 ratio in sixth. The final drive ratio of Corvette models equipped with the new transmission is 2.56:1.

 

Technological sophistication is exemplified by two electronically controlled automatic modes, Drive and Sport; plus manual Paddle Shift. The Drive mode follows a specific shift schedule of predetermined shift points, while the Sport mode enables Performance Algorithm Shifting (PAS). PAS modifies shift patterns when performance driving is recognized by the controller. The Drive mode optimizes shifts for smoothness, while the Sport mode enables firmer shifts for better performance. With the Paddle Shift mode, gear changes are made with manual control paddles located on the steering wheel.

 

The performance and functions of the six-speed Paddle Shift transmission with automatic modes are guided by an integrated controller. The controller is located inside the transmission, reducing complexity. A new 300-mm torque converter, new rear bell housing, new driveline support and revised-length driveshaft also support the transmission’s integration into the Corvette.

 

Enhanced chassis and suspension

 

The overall Corvette design philosophy continues with its low-weight hydroformed steel rail backbone structure, cored composite floors, an enclosed center tunnel, rear-mounted transmission and aluminium cockpit structure, but the Corvette adds a host of improvements. Overall vehicle weight is significantly reduced, despite mass-increasing features such as larger wheels and tires, more robust brakes and increased body acoustics. It also delivers a quieter, even more pleasing ride.

 

The short-long arm and transverse leaf spring independent suspension configuration remains, but not a single suspension component has been carried over from its predecessor. Goodyear Extended Mobility Tires (EMT) take advantage of the latest sidewall design and compound technology for run-flat capabilities.

 

Three dynamic chassis control systems – anti-lock braking, traction control, and Active Handling – operate in concert to provide a strong, but unobtrusive safety net for spirited driving. The stability controls share sensors for steering angle, wheel speed, and acceleration and deceleration in all directions, but unlike some more intrusive systems, the Corvette team developed a calibration philosophy which works with the drivers in their spirited driving, rather than against them.

 

Optimised suspension and steering geometry, along with advanced compounds in the tires, directional control arm bushings, increased caster angle and greater suspension travel give result in a faster car that is easier to drive, with greater lateral acceleration, more body control, less noise transmitted from the road, and better traction and stability in corners. Two suspension choices allow drivers to choose the set-up that best suits their driving style. Corvette is now more poised at even higher handling levels, yet easier to drive. 

 

The optional F55 Magnetic Selective Ride Control suspension features magneto-rheological dampers able to detect road surfaces and adjust the damping rates to those surfaces almost instantly for optimal ride control. The system has been improved to deliver more differentiation between the system’s “Tour� and “Sport� settings.

 

Corvette Convertible

 

The thrill of open-air motoring was a part of the original allure when the Chevrolet Corvette was born in 1953. The sixth-generation Corvette Convertible brings serious performance and thoughtful refinement to the fun of driving a roadster. The no-compromise Corvette Convertible offers identical performance, refinement and equipment levels to the Coupe.

 

“We designed the Corvette from the outset as an open car, so there’s no compromise in ride, handling and performance for the Convertible compared to the Coupe,� said Dave Hill, Chief Engineer for the Corvette and Vehicle Line Executive for GM Performance Cars. “We sweated the details to ensure that the Convertible driver has all the performance of the Coupe, with surprising quietness and excellent storage capability for a roadster, top-up or top-down.�

 

The sixth-generation Corvette Convertible features a power-operated soft top, a feature that last appeared on the car in 1962. The power top features a single-button control and completes its cycle in 18 seconds. The top is designed and manufactured in partnership between GM and Car Top Systems, GmbH, experts who have contributed to some of the world’s most celebrated open cars.

 

The convertible top for the sixth-generation Corvette reflects great attention to detail to net improvements in aesthetics, aerodynamics and utility. The canvas soft top is available in three colors: Black, Beige and Grey. In its closed position, the canvas top has a smoother, more contoured appearance that conceals the underlying structure better than traditional soft tops. In addition to aiding a clean appearance, this also helps preserve the outstanding aerodynamic characteristics.

 

Improved top-down quietness

 

The Corvette’s structure, including an aluminium windshield frame, was designed using extensive computer airflow models to improve top-down quietness – especially for noise frequencies in the range of passenger conversations. The top material itself is made of a thick fabric called Twillfast, constructed in five layers for strong durability and insulation.

 

Several more details combine to make the convertible more pleasing to drive. Every option available on the Coupe can be specified on the Convertible too. A bulkhead has been added to better contain small items in the trunk and enable the addition of a storage area behind each seat. Rear visibility is improved with a glass backlight that is 18.5 percent larger than the previous model. Like its predecessor, the backlight has a standard rear defogger. The Corvette is equipped with a luxury package: memory package, heated seats, head up display, power telescoping steering column, 7 premium Bose speakers and auto dimming rear view mirrors.

 

The Corvette Coupe and Convertible are built in Bowling Green, Kentucky, USA.

Corvette Coupe & Convertible Technical Specifications

 

Dimensions and Capacities	ÂÂÂÂ
Length (mm)	4435
Width (mm)	1844
Height (mm)	1246
Track, front/rear (mm)	1577/1542
Wheelbase (mm)	2686
Headroom (mm)	963
Hiproom (mm)	1364
Legroom (mm)	1095
Shoulderroom (mm)	1405
Cargo volume, hatchback/trunk area (l)	Coupe 634, Convertible, top up 295, top down 144
Weight distribution (% front/rear)	51/49
Curb weight (kg)	Coupe 1508, Convertible 1517
Fuel tank capacity (l)	68,8

 

Engine and Transmission	ÂÂÂÂ
Engine, location	6.0L V8
Engine block/cylinder head	Cast aluminium
Bore x stroke (mm)	101.6 x 92
Displacement (cm3)	5967
Compression ratio (:1)	10.9
Fuel feed	SFI (sequential fuel injection)
Valvetrain	Central, 2 valves per cylinder
Maximum engine speed (rpm)	6500
Max. output (hp/kW/rpm)	404/297/6000
Max. torque (Nm)	546/4400
Engine oil (l)	5.2
Transmissions	Tremec T56 6-speed manual with standard Z51 Performance Package	Tremec T56 6-speed manual with optional F55 Magnetic Selective Ride Control	6-speed Paddle Shift automatic transmission

 

 

Chassis / Suspension

 

Front suspension

Short/long arm (SLA) double wishbone, cast aluminium upper & lower control arms, transverse-mounted composite leaf spring, monotube shock absorber

 

Rear suspension

Short/long arm (SLA) double wishbone, cast aluminium upper & lower control arms, transverse-mounted composite leaf spring, monotube shock absorber

 

Steering

Speed sensitive, magnetic power-assisted rack-and-pinion

 

Wheels (inch)

Front: 18 x 8.5; rear: 19 x 10

 

Tires

Goodyear Eagle F1 GS Extended Mobility, front: P245/40ZR-18, rear: P285/35ZR-19

 

Brakes

Power-assisted disc with ABS, front and rear

 

Traction control

Electronic traction control, active handling