Porsche 911| super speed cars

 Stuttgart. Dr. Ing. h.c. F. Porsche AG, Stuttgart, is proudly presenting a new top model at the pinnacle of its broad range of production sports cars: The new Porsche 911 | super speed cars Turbo combines far-reaching innovations in technology with fine tuning and supreme refinement in design. All key features of this high-performance sports car have been significantly improved, the new 911 Turbo combining a substantial improvement in fuel efficiency and lower weight with more power, even higher speed, and enhanced driving dynamics.

 Particularly in terms of fuel economy and dynamic performance, the new top of the range 911 from Zuffenhausen now stands out even more than before from its competitors in the market. Porsche’s new top model will be presented to the public for the first time at the Frankfurt Motor Show from 17 – 27 September.

The heart and highlight of the seventh generation of the Turbo is the new power unit displacing 3.8 litres and delivering maximum output of 500 bhp (368 kW). The first entirely new engine in the 35-year-history of the Turbo comes with features such as Direct Fuel Injection and Porsche’s exclusive turbocharger with variable turbine geometry on a gasoline power unit. And as an option, the new six-cylinder may be combined for the first time with Porsche’s seven-speed PDK Doppelkupplungsgetriebe (Double-Clutch Gearbox).

 Models equipped with PDK are also available with a new, optional three-spoke steering wheel with gearshift paddles as an alternative to the standard steering wheel with its proven shift buttons. Fitted firmly on the steering wheel, the right paddle is for shifting up, the left paddle for shifting down. In conjunction with the optional Sport Chrono Package Turbo both the gearshift paddle and the PDK steering wheel with its shift buttons come with integrated displays for Launch Control and the Sport/Sport Plus mode, which are however designed differently on the two steering wheels.

The combination of PDK, Direct Fuel Injection and turbocharging ensures an unprecedented standard of efficiency, agility, responsiveness and performance, the Porsche 911 Turbo reducing CO2 emissions versus its predecessor by almost 18 per cent and therefore ranking unique in its segment also in this respect. Depending on the configuration of the car, the new top model requires just 11.4 – 11.7 ltr/100 km (equal to 24.8 – 24.1 mpg imp) under the EU5 standard. And unlike most other cars in its segment, the new Turbo remains even further below the crucial level of fuel consumption for gas guzzler tax in the USA, the special tax imposed on cars with substantial fuel consumption. All this despite acceleration to 100 km/h in 3.4 seconds. Top speed, in turn, is 312 km/h or 194 mph.

The Turbo driver of the future will also enjoy a further improvement in driving dynamics, detailed enhancement of PTM fully controlled all-wheel drive and PSM Porsche Stability Management being further supported by new PTV Porsche Torque Vectoring available as an option. This makes the car even more agile and precise in its steering for an even higher level of driving pleasure.

 Sales of the new Porsche 911 Turbo in both Coupé and Cabriolet guise are starting in Germany on 21 November 2009. The Euro base price without value-added tax and national specifications is Euro 122,400.- for the Coupé and Euro 131,800.- for the Cabriolet. The gross retail price in Germany, therefore, is Euro 145,871.- for the Coupé and Euro 157,057.- for the Cabriolet, in each case including 19% value-added tax and national specifications.

Pontiac G8 | super speed cars

 If I were to tell you GM is the new BMW you’d probably laugh at me. But driving the 2009 Pontiac G8 GXP | super speed cars just a couple of months after the 2009 Cadillac CTS-V and Corvette ZR1, that’s exactly what I’m thinking. Equipped with a 6.3-liter, LS3 V8 making 415 HP and 415 lb-ft of torque, the G8 GXP isn’t just the fastest car Pontiac’s ever made, but based on GM’s new global rear wheel drive platform (the same one as the new Camaro) and fitted with lower, stiffer suspension and a six-speed manual gearbox it strikes the right balance between supercar performance and real world practicality. Think E39 M5, but with a Corvette engine and better steering.

Driving in LA is a strange mix of sitting still in hellish traffic and driving flat out on the best roads in the world. Get on one of the highways at the wrong time and it’ll take you three hours to go 30 miles, but hit the canyon roads to the North or East and it’s easy to forget that you’re within mere miles of the most populous metropolitan area in the country. The G8 GXP excels in both environments.

 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.

“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.

The standard Hydra-Matic six-speed 6L80 automatic can be substituted for a a new six-speed Tremec TR6060 manual transmission. The manual gearbox features: a shorter throw; premium gear synchronizers; stronger gears, housing, and bell housing; a single-piece counter shaft; and machined gear teeth. The automatic 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 limited-slip differential is standard.

 Six on the floor
The GXP will be the first vehicle in the G8 family to offer an optional six-speed Tremec TR6060 manual transmission. This next-generation manual smoothly transfers the engine’s power and torque to the rear wheels with a shorter shift throw than previous models. 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.

Standard equipment on the GXP and shared with the G8 GT, the Hydra-Matic six-speed 6L80 automatic transmission is one of GM’s most 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 the famed Nurbergring, the first Pontiac ever to be tuned on the legendary course. It rewards the driver with sharp, immediate responses, as well as a well-balanced road feel even during more aggressive steering inputs.

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.