25/06/24

The Ultra Performance Hybrid

For the new Continental GT Speed, a brand-new Ultra Performance Hybrid powertrain has been developed. The new powertrain combines a new 4.0 litre V8 engine capable of producing 600 PS (584 bhp) with a 190 PS (187 bhp) electric motor. Peak system output is 782 PS (771 bhp) – enough for a 0-60 mph sprint time of just 3.1 seconds and a top speed of 208 mph (335 km/h). 

System torque is increased by over 11 per cent compared to the outgoing W12-powered Continental GT Speed, from 900 Nm = to 1000 Nm (738 lb ft). System power has also increased by 19 per cent, from 659 PS to 782 PS. This makes the new Continental GT Speed the most powerful Bentley ever, beyond the levels of the second-generation Supersports and the Batur.

The power is delivered via an eight-speed dual clutch transmission and an electronic limited slip differential (eLSD) to all four wheels, for exceptional power delivery and reliable traction in all conditions. The system uses active torque vectoring front to rear through a centre differential, and precision vectoring across each axle using the brakes.

There are three key powertrain system elements: 

The new 600 PS, 800 Nm (590 lb ft) V8 engine – with no traditional vacuum system, and 350 bar fuel injection pressure (raised from 200 bar) provides cleaner combustion and improved emissions. With the e-motor negating turbo lag, twin single-scroll turbochargers have been used – which reduces complexity and allows them to run hotter, minimising emissions. Therefore, no cylinder deactivation hardware is required, as the engine can be switched off entirely when using the electric motor.

The 190 PS, 450 Nm (332 lb ft) electric motor within the transmission housing delivers torque-fill at low engine speed and does the same during gear shifts for extra smoothness.

The 25.9 kWh battery, which is mounted behind the rear axle. This helps achieve a perfect weight distribution and up to 85 per cent of the battery capacity is useable.

The system manages the energy flows dependent upon the mode chosen – with pure EV, electric boost, regenerative braking – and, most importantly for this new GT Speed – a charge mode, where the engine drives the wheels and charges the battery at the same time. 

Due to the combination of the V8 engine and electric power, Bentley’s engineers have been able to deliver improved power and torque across the full rev range. This includes a vital boost from the electric motor for strong acceleration from low speeds and throughout the mid-range, combined with increased performance from the V8 engine at higher speeds too. A significant amount of development has also been invested in the exhaust note too, emphasising the cross-plane quality – and without the use of artificial, electronic enhancement.    
Equally impressive are the electric modes, allowing customers to enjoy silent and seamless motoring. In full electric mode, the electric motor alone can deliver 190 PS and 450 Nm, more than enough to keep up with the traffic in most situations. Full electric mode can be deployed at speeds of up to 87 mph / 140 km/h, with throttle applications of up to 75 per cent. The battery can be fully replenished in as little as 2¾ hours thanks to significant improvements in charger and battery capacity, with 11 kW peak charging power.  

 A Muscular and Contemporary Design Statement

The new Continental GT Speed continues the three key design aspects seen through Bentley’s heritage since the iconic R-Type Continental of 1952.

The fourth generation follows the form of the modern two-door Bentley in that it has the stance of a resting beast – muscular but relaxed, and confident with strong, well-defined haunches indicating the power beneath the skin. The favoured image of Bentley’s designers is a tiger at rest – calm and collected, but ready to unleash incredible force.

The front of the car is inspired by the upright elegance of a thoroughbred horse – reinforcing the status of this exceptional luxury grand tourer. Finally, the ‘endless bonnet’ creates a strong horizontal line through the car indicating the high-performance engine and pure speed.

The whole car has been visually cleaned, with fewer breaks in the surfaces giving more muscularity and a more refined shape. The complete front aspect of the car is new, from the body coloured integrated body kit to the biggest change in the last two decades for the Continental GT - single front headlamps. Not since the S2 of 1959 has a mainstream, non-coachbuilt Bentley had single front lamps, but the change brings a more determined expression to the face of the GT, again inspired by the focused expression of a hunting tiger.

The headlamp features a new horizontal ‘eyebrow,’ a deep crystal cut diamond effect to the top of the lamps and an illuminated lower pattern. The matrix LED lamps contain 120 separate LEDs that are digitally controlled with differing responsibilities for low beam foreground to high beam power boost. This increases the capability of the lamp with main beam widened field of illumination and improved fade out, which gives a more gradual transition from lit to unlit areas. This makes reading the road more natural and gives a more relaxing driving experience by avoiding the perception of “black holes” in the field of vision.

The rear of the car has also been redesigned including the bumper, taillights, boot lid and exhaust tail pipes. The boot lid incorporates an integrated aerodynamic form to provide rear downforce without the need for a deployable rear spoiler, and the bumper is much more dramatically styled emphasising the width of the car, whilst being cleaner with less embellishment. 

The taillights have a dramatic new appearance with a much wider graphic stretching into the boot lid. The lamps protrude out from the boot and internally they feature a deep three-dimensional diamond pattern across their form. When illuminated the tips of the diamonds accentuated creating a molten lava-like visual effect.

New 22” wheels has a strongly directional design again takes inspiration comes from the tiger – with the ‘claws’ of the wheel digging into the road. The new wheel style is offered in dark tint paint with polished accents, gloss black or silver painted. 

The Underwater Speed Record

To prove the performance of the new Continental GT Speed, Bentley set out to establish a new speed record – one not formally attempted before. The authentic sound of the cross-plane V8 exhaust note inspired the idea of running the car above 200 mph through a tunnel – and a project lasting 18 months set out to achieve exactly that.

With the incredible support of the Norwegian highways authority (Statens Vegvesen) and the Norwegian police, the Ryfylke Tunnel in Rogaland county, Norway was secured for the attempt. The Ryfylke Tunnel is the world’s longest subsea road tunnel at 8.9 miles / 14.4 km long, and the deepest tunnel of any kind in the world – descending to 292 metres below sea level.

Rounds of engineering analysis and simulation evaluated the airflow around the car at high speed in an enclosed tube to ensure safety. Then, in April, a team from Bentley and supporting suppliers headed to Norway to run the new Continental GT Speed through the tunnel, as part of the creation of a launch film for the new car. Running on renewable second-generation biofuel, and charged with electricity from fully renewable sources, the car went from a standstill to its 208 mph / 335 km/h top speed in just 33 seconds. Several runs were completed for filming, in so doing establishing a new unofficial speed record for a car in a tunnel.

More details on the Underwater Speed Record project, including a behind-the-scenes film, will be released in due course.

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