Monday, 27 June 2011
Bentley Continental GTC Speed
Introduction of the new Bentley Continental GTC range builds on this success with a subtle evolution of its distinctive style and a range of technical and feature enhancements benefiting comfort and customer choice. The appeal of the GTC is further strengthened by the addition of the new 600bhp (610PS) Bentley Continental GTC Speed model. It is Bentley's most powerful convertible ever and inspired by Bentley's legendary 'Speed Models' from the 1920s.
The new GTC models share a fresh frontal appearance. The radiator grille is more upright with a more pronounced square edge, accentuating the Bentley profile, and bolder lower air intake. These latest models are further distinguished by chrome headlamp bezels, the availability of two new exterior paints and a new colour hide.
For the standard Bentley Continental GTC, new low-friction dampers provide improved ride comfort. In addition, two significant new options may be specified on both GTC models: lightweight, fade-resistant, carbon-ceramic brakes, the largest production passenger car brakes in the world, and a sophisticated follow-to-stop Adaptive Cruise Control system with long-range radar sensor that monitors traffic ahead and manages throttle and brakes to maintain a driver-selected time gap.
The GTC's chassis and exceptionally rigid steel body have proved more than capable of coping with the power of the 552bhp (560PS) 6-litre W12 engine. For the new Bentley Continental GTC Speed, twin-turbocharged W12 now develops 600bhp (610PS) that delivers true 200 mph (322 km/h) performance, with the roof up, with exhilarating, effortless acceleration. Even with the roof down the Bentley Continental GTC Speed can reach 195 mph (312 km/h).
The Bentley Continental GTC Speed is visually distinguished by subtle design enhancements which emphasise its higher performance credentials. At the front, the radiator and lower air intake grilles feature a dark tinted matrix as standard. Larger diameter 9.5J x 20-inch, multi-spoke alloy wheels with Bentley-bespoke Pirelli PZero ultra-high performance (UHP) tyres, lowered and uprated suspension, wider twin-rifled exhaust tail pipes and a new boot-mounted lip spoiler that enhances high speed aerodynamics, reinforce the sporting character of the Speed model.
The GTC Speed's 600bhp (610PS) W12 engine develops 9 per cent more power than the standard GTC. However, it is the 15 per cent increase in torque that really distinguishes the Speed model, which now develops an impressive output of 750 Nm (553lb ft). This is achieved across virtually the complete rev range, from just 1700 to 5600 rev/min, delivering that characteristic Bentley wave of torque.
The 0-60 mph sprint is despatched in a mere 4.5 seconds (0-100km/h in 4.8 seconds) and 0-100 mph in 10.6 seconds (0-160 km/h in 10.5 seconds).
The GT Speed coupe, which debuted in 2007, has become the top selling GT model across the globe. This was followed in summer 2008 by the 4-door Continental Flying Spur Speed. Now, the Speed family is completed with the introduction of the Bentley Continental GTC Speed, which is expected to account for up to two-thirds of GTC sales worldwide in its first year of production.
Enhanced powertrain delivers more power and torque
Both Continental GTC models are powered by Bentley's 6-litre, twin-turbocharged W12 engine which is produced exclusively at the company's Crewe engine plant. The Bentley W12 is the most compact 12-cylinder engine in production with 48 valves and 4 camshafts with continually variable valve timing. Power is transmitted via a ZF six-speed automatic transmission.
The Bentley Continental GTC Speed is powered by Bentley's W12 engine in its most powerful, 600 bhp (610PS) form. It develops 15 per cent more torque and 9 per cent more power than the 552bhp (560PS) standard Bentley Continental GTC.
Engine efficiency improvements result from the use of lower friction, lighter-weight components and a new engine management system, while twin, low inertia turbochargers with minimal turbo lag contribute to the W12 engine's flat torque curve. In 600 bhp (610PS) form, the W12 develops a maximum torque of 750 Nm (553 lb ft) from 1700 rev/min all the way up to 5600 rev/min. The GTC Speed engine is visually differentiated by the 'crackle black' finish to the intake manifold.
This endows the Bentley Continental GTC Speed with a top speed of 200mph (322 km/h) with the roof-up and a 0-60mph sprint time of just 4.5 seconds (0-100 km/h in 4.8 secs). It also accelerates from 0-100 mph in just 10.6 seconds (0-160 km/h in 10.5 seconds).
The six-speed transmission can be left in two fully automatic modes (Drive and Sport) or used as a clutchless manual where the driver can change gears sequentially, via either the gearlever or paddles mounted behind the steering wheel.
The advanced continuous all-wheel drive system of both GTC models provides exceptional traction in all weathers. The drive is transferred between the front and rear axles via a highly sensitive centre Torsen differential. If the differential detects a deviation in torque demand between the two axles it automatically sends more power to the wheels with greater grip.
Both the GTC and GTC Speed also feature an advanced electronic stability programme (ESP 8.1). The 'Sport Traction' mode for the GTC moderates ESP intervention at low speeds, benefiting driver interaction and control, particularly on low traction surfaces. The 'Dynamic Mode' of the GTC Speed allows increased wheel slip at higher speeds compared to the standard chassis. This ensures that torque is reinstated more quickly, allowing the driver to exploit the full potential of the engine.
A luxury convertible with outstanding ride and handling
The Continental GTC's steel body has an exceptionally rigid torsional stiffness of around 30Hz that not only minimises 'scuttle shake' but provides a very stable platform for the aluminium-intensive suspension system, optimising its performance. Despite the boost in power and torque for the GTC Speed model, no changes to the body structure were required.
For the 552bhp (560PS) GTC, new low-friction dampers provide improved secondary ride (the response of the car to poor road surfaces) and even greater levels of comfort.
The Bentley Continental GTC Speed has a range of dynamic enhancements that deliver a more sporting, open-top Bentley driving experience. The retuned Continous Damping Control (CDC) system ensures that the body response matches the inputs from the new sports wheels and tyres, while improved body control reduces pitch and roll when cornering enthusiastically. In addition, stiffer rear axle bushes deliver better axle control and turn-in response.
The GTC Speed's suspension is lowered by 10 mm at the front and 15 mm at the rear for improved handling, while the retuned speed-sensitive steering system and solid-mounted front subframe, shared with the standard GTC, benefit steering response.
The wider 9.5J x 20-inch multi-spoke alloy wheels, unique to the GTC Speed, are fitted with bespoke 275/35 ZR20 Pirelli PZero ultra-high performance tyres that provide the car with superior grip as well as sharper steering response and feel.
To ensure optimum aerodynamic balance at speeds up to 200 mph (322 km/h) the new GTC Speed is fitted with a discreet spoiler on the trailing edge of the bootlid. This provides additional downforce and increases the top speed.
For both models, Bentley's carbon-ceramic brakes (CCB) are offered as a cost option. Larger diameter (420 mm front, 356 mm rear), lightweight discs and eight-piston callipers offer fade-resistant braking performance with minimal disc distortion under high thermal conditions. A 20kg weight saving reduces unsprung mass and benefits steering response and handling. This braking system may only be specified with 20-inch diameter wheels and are the largest and most powerful brakes ever fitted to a production car.
The standard-fit tyre-pressure monitoring system (TPMS) allows drivers to select tyre type and speed range parameters. As well as monitoring pressures, the system warns drivers if their speed is too high for the tyre pressures or if tyre speed ratings are exceeded on winter tyres.
Commenting on the GTC Speed's character, Dr. Ulrich Eichhorn, Member of the Board, Engineering, said:
"The Bentley Continental GTC Speed offers supercar performance, superb refinement, comfort and unrivalled craftsmanship all in one car. It perfectly evokes the spirit of the original Bentley 'Speed Model' of the 1920s."
Subtle evolution of the GTC's distinctive style
