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PRESS | The Pontiac 2009 G8 GXP
“More than just raw power, the GXP delivers the sophisticated yet exciting driving experience that enthusiasts expect in a car costing far more than the GXP,” said Jim Bunnell, Buick-Pontiac-GMC general manager
Engine performance
The heart of the G8 GXP is the 6.2L LS3 small-block V-8, currently rated at 402 horsepower (300 kW)* and 402 lb.-ft. of torque (546 Nm)* pending final SAE certification. This engine is the newest member of GM’s small-block V-8 family. It features a revised, larger-bore cylinder block, high-flow, L92-style cylinder heads; larger-diameter pistons; unique camshaft and camshaft timing; revised valvetrain with offset intake rocker arms; high-flow intake manifold; and high-flow fuel injectors.
The LS3 engine has an aluminum cylinder block with cast-in-place iron cylinder liners. Larger bores help create a 376-cubic-inch displacement. The block casting also features revisions and machining in the bulkheads to enhance its strength and improve bay-to-bay breathing. New pistons were designed for high-rpm performance.
New, high-flow cylinder heads aid engine breathing and are based on the large port and valve design found on the LS7 engine and other GM L76 engines. The larger-capacity, straighter intake port-design optimizes intake flow to the combustion chamber, an effect augmented by large valves, measuring 2.16 inches (55.0 mm) on the intake side and 1.59 inches (40.4 mm) on the exhaust side.
Pending final testing, the G8 GXP is expected to deliver 0-to-60 mph performance of about 4.7 seconds, and a quarter-mile time of 13.0 seconds at 108 mph.
Six on the floor
A new six-speed Tremec TR6060 manual transmission is optional on the G8 GXP. This next-generation manual smoothly transfers the engine’s power and torque to the rear wheels with a reduction in shift throw. The transmission features a host of refinements including premium gear synchronizers; stronger gears, housing, and bell housing; a single-piece counter shaft; and machined gear teeth.
The standard Hydra-Matic six-speed 6L80 automatic transmission is technologically advanced and robust. It uses a clutch-to-clutch operation and an integrated 32-bit transmission controller to deliver smooth and precise shifts. The six-speed has a generous 6.04:1 overall ratio that enables a “steep” first-gear. The result is strong launch acceleration along with “tall” overdrive ratios that lower engine rpms for better fuel economy and reduced noise.
A 3.27 final drive ratio comes with automatic-equipped GXPs, and a 3.70 gear is matched with the manual transmission. A limited-slip differential is standard.
High-performance suspension
The G8 GXP rides on the G8’s 114.8-inch (2915 mm) wheelbase with wide front ( 62.7 inches / 1,592 mm) and rear ( 63.3 inches / 1,608 mm) tracks. The four-wheel independent suspension is fully adjustable and is tuned for the highest performance in the G8 family. The GXP’s ride and handling was developed and validated on racetracks and highways around the world, including the famed Nürburgring racing circuit. It rewards the driver with sharp, immediate responses, as well as a well-balanced road feel during spirited driving.
The suspension employs a MacPherson strut design in the front and a four-link, coil-over-shock design in the rear. A direct-acting front stabilizer bar, decoupled rear stabilizer bar and lateral ball joints on the rear suspension deliver increased lateral stiffness for more responsive handling. The front suspension features fully adjustable caster, camber and toe; the rear suspension has fully adjustable camber and toe, for more precise tuning.
Steering and brakes
The steering rate for the GXP is tuned to provide immediate response with definitive driver feedback. Like the G8 sedan and GT, the GXP’s steering box is located ahead of the front axle line for a quicker, more direct feel.
The Brembo braking system matches the GXP’s boost in performance with an equivalent increase in stopping power. The system includes 14-inch (355 mm) vented front and 12.76-inch (324 mm) rear disc rotors, with special quad-piston alloy calipers in front. The alloy calipers on the rear brakes have single-piston actuation. The four-wheel disc brake system includes standard anti-lock brakes and traction control.
Wheels and tires
The GXP rides on 19-inch polished aluminum wheels with a special machined face. Performance-oriented summer P245/40R19 tires are standard, and a comparable all-season tire is available. Combined with the suspension and steering enhancements, this setup gives the GXP exceptional cornering grip.
Exterior styling
The G8 GXP exhibits strong
Interior amenities and comfort
The G8 GXP’s interior is driver-oriented with aesthetic and tactile details like instruments with a sporty appearance that match the car’s performance. Interior materials consist of satin and chrome trim and high-quality textured materials throughout. The instrument cluster glows with crisp, white light on the primary instruments.
Standard comfort and convenience amenities include:
- Highly bolstered two-tone sport seats with color-coordinated gauge cluster and GXP embroidery
- Leather-trimmed steering wheel and gear shifter
- Power-adjustable front seats
- Fog lamps
- Alloy sport pedals
- A 230-watt Blaupunkt audio system
- XM Satellite Radio
The seats offer firm support to hold occupants in place during aggressive cornering. The standard heated leather seats were designed to deliver excellent comfort during long drives. They are available in Ebony or an Ebony/Red two-tone.
Safety
Maintaining the G8’s tradition of a full suite of standard safety features, the G8 GXP includes:
- Four-wheel disc brakes with ABS and traction control
- Electronic stability control
- Seat-mounted thorax air bags and dual-stage frontal air bags for front passengers, with automatic passenger sensing system
- Roof rail side-impact air bags for both seating rows
- OnStar
PRESS RELEASE (Source: Pontiac via CarScoop)
Auto Gallery | 2010 Hyundai Genesis Coupe
Photo Update (Source: Jalopnik via CarScoop)
PRESS | Electric Lightning GT Design revealed
In June 2007, The Lightning Car Company announced its intent to develop electric technology for a luxury British sports car – the Lightning GT. Today sees the unveiling of its evolutionary design. This super car with its outstanding presence & performance is set to put British sports car innovation well and truly back on the map. Designed to accommodate the latest battery and motor technology and reflect its 100% electric power and performance, the electric Lightning prototype is being hand-built by a small team of passionate British engineers, designers and collaborators.
Whilst the rest of the automotive world engages in the hybrid, hydrogen or electric debate, the Lightning Car Company firmly believes its 100% Electric Lightning GT will help kick start the market for performance EV’s. Without a significant positive shift in perception, electric motoring will remain a huge compromise in the eyes of driving enthusiasts and therefore fail to impress the masses. Our vision is shared by the world’s biggest car maker, General Motors, who believes the global oil supply has peaked and a switch to electric cars is inevitable…
The design team has created a successor to the petrol Lightning GT. Combining the spirit, heritage, individuality and drama of the original car with a dynamic and contemporary design language moves it into a new era and, in doing so, embraces the new technologies and innovative architecture that reside beneath its skin. Subtle creases, positive and negative sections add a sense of strength and finesse to the dramatic surfaces of the car while retaining an understated, yet distinctive British Grand Tourer aesthetic. The Lightning’s interior will also be designed to complement the unique electric driving experience.
With the build of the prototype well underway, we should see how this translates into the ‘real thing’ during the second half of 2008. The electric Lightning GT and Sports versions are now available to pre-order and deposits of £15,000 are being accepted.
PRESS RELEASE (Source: Lightning Car Company via World Car Fans)
