5. Gloss black matrix Red enamel „B‟
grille with chrome exterior badges
frame and centre
bar
Optional unique
21” six-spoke
Dynamic lower
wheels, in
front bumper with
Diamond Black or
distinctive strakes
Diamond Silver
6. Seven standard
paint colours Three standard
hood colours
Red enamel „B‟
exterior badges
„Figure eight‟
tailpipes Dark lower
valance
7. Short console Eliade cloth
with bench seat headlining and pillar
trims
Contemporary Dark
Fiddleback
Eucalyptus signature
veneer
Single front
Four standard armrest
hide colours
Bentley embossed
treadplates
13. Joint venture with Audi since 2008
• 4 Litre V8
• Eight speed transmission
• Unprecedented reduction in fuel
consumption and CO2 emissions
• Bentley performance
15. How can a 4.0 V8 deliver Bentley performance and
refinement?
• Higher pressure turbocharging
• Direct injection
• Detailed optimisation of
inlet, combustion and exhaust
systems
• Close ratios of 8-speed
transmission
• Weight reduction
16. Twin-scroll Reverse flow
turbochargers configuration
High pressure
Indirect high-
direct injection
efficiency
intercooler
17. Twin-scroll Reverse flow
turbochargers configuration
High pressure
Indirect high-
direct injection
efficiency
intercooler
Tumble flow control
for optimised Low-friction
combustion bearings
Variable Coolant flow
displacement control
18. • Benefits of variable displacement proven
by Bentley on Mulsanne
• At low speeds and while cruising, four of
the eight cylinders are deactivated
• Efficiency enhanced by reducing frictional
and gas transfer losses
• Active cylinders work at a more
efficient load point
19. Variable displacement brings a unique challenge
• V4 vs V8: two engines with very different characteristics
• Bentley levels of refinement
maintained during V4 mode
– Exhaust system optimisation
– Powertrain mount tuning
20. • Tuned hydraulic engine mounts
– Improved idle refinement, by
switching to „soft‟ state
– No compromise to ride comfort
– Improved isolation from engine
vibration
• Two-stage transmission mount reduces
floor vibration across entire engine range
– Internal floating element
21. Standard
Switchable
Secondary Engine
engine vibration firing
vibration
22. • Wide spread of close ratios
– Optimised engine speed
– 6% improvement in fuel economy
– Smoother gear changes
• Advanced ECU software
– Faster gear changes
– Block shifting (combined downshifts)
• Dedicated circuit diverts hot coolant to the
transmission
23. Three main sound characters
Strong V8 Mid-range growl High end howl
burble
Engine speed (rpm)
Frequency
24. Decoupler
elements
Balance tube
Dual-mode rear
mufflers
Asymmetric (LHS
only) muffler Centre muffler
Switchable
exhaust
character
25. • PZD: 400 hours, cycling up to
full power, with 20°C coolant
flushes
• DHT: 100 hours uninterrupted
full throttle
• DTS: Deep Thermal Shock (full
power, -30°C coolant
flush, repeat 400 times)
• MCT: Manifold Crack Test (full
power, 950°C exhaust, cut fuel
and pump air through engine –
27. • Front axle load reduction of 25 • Improved weight distribution
kg
• 51:49 % (FR:RR) GTC V8
• Enhanced steering response GVW
28. Permanent All Wheel Drive
• 40:60 (front : rear) torque split, class-leading traction in all
weather and road conditions
• Increased driver involvement
29. Electronic Stability Control
• Enhanced brake intervention and throttle regulation
• Increased control and response during cornering
30. Iron or Carbon-Silicone-Carbide
• 405 / 420 mm diameter front
• 335 / 356 mm diameter rear
• 8-piston front callipers
• Carbon brakes provide 20 kg (44
lb) weight saving
31. Bentley Maserati
Aston Martin Ferrari
Continental GT GranTurismo
Vantage S California
V8 S
Power (bhp/PS/kW) 500/507/373 433 430 460
Torque (lb ft/Nm) 487/660 490 490 485
0-60mph/0-100 km/h (s) 4.6/4.8 4.9 4.9 4.0
Top Speed (mph / km/h) 188 / 303 183 / 295 189 / 304 193 / 310
Fuel Economy (l/100km /
10.5 / 27.0 15.3 / 18.5 12.9 / 21.9 13.1 / 21.6
mpg)
CO2 (g/km) 246 354 299 305
Range (km) 850 564 620 602
32. –
Bellevaux,
Inside French Alps
the M25 Newhaven / Dieppe Paris Auxerre Dijon Geneva
Km 0 100 200 300 400 500 600 700 800 900
Bentley Continental GT
V8
Aston Martin Vantage S
Ferrari
California
Porsche 911
Turbo
Maserati Gran Turismo
S
33. The new Bentley Continental GT V8
• Efficiency: 40% improvement in fuel
economy
• Exhilaration: 500 bhp and 660 Nm
• Outstanding levels of refinement
• Priced c.10% below W12 GT / GTC
• Unique styling and features
• Range of specification packs for individual
Editor's Notes
BY614 at the time was 411 g/km CO2. 40% reduction from this = 246 g/km, which is exact measurement of BY624.
Working closely with Audi from outset, involved with the design and development of the engine throughout the process.Vital to reduce fuel consumption, but not at the expense of torque, power or “Bentley feel”
The CO2 reduction walk from 2008 Continental GT to 2012 Continental GT V8.Downsizing – fewer cylinders means lower engine friction. Performance regained through twin-scroll turbocharging, highly efficient intercooling, very short air paths, direct injection and fully optimised combustion chambers, intake and exhaust systems.Eight speed transmission – at the most efficient engine speed for more of the time. Block shifting (more later) means correct gear for performance always available in an instantCylinder deactivation – application of learning from Mulsanne to run the engine as a V4 during light load or cruise. More later.Recalibration – making the most of all the advanced technologies the new engine includes: careful tuning of CDA, maximising benefits of direct injection, etcWeight/drag – aerodynamic improvements, 25kg weight reductionThermal management – rapid warm-up and tranmission warming circuit (more later) means powertrain reaches optimum, low-friction operating conditions as quickly as possible (also very rapid catalyst light-off due to engine layout)Recuperation – running alternator harder during coasting, allowing lower alternator load when cruisingLow rolling resistance tyres – making the most of the latest and best tyre technologies, working closely with our suppliers
Vital for engine to deliver performance as well as economy.Must feature typically high levels of refinement.Compromise not acceptablePeak boost pressures:W12 (575PS) = 1.65 barW12 (630PS) = 1.84 barV8T = 2.2 bar
Reverse flow – exhaust system and turbochargers inside the V, intake system on the outside of the V.Note extremely short air paths – optimised for superb throttle response with mimimal turbo lag
Tumble flaps allow precise control of air path in to the cylinder, and work together with direct injection to create perfect conditions for powerful yet economical combustion.
Specialised engine and transmission mountsExhaust system tuning for refinement during cruise and sporty V8 note during spirited driving.
Engine mounts “soft” at idle to reduce vibration transmission to cabin.Powertrain mounts work together to reduce vibration peaks at first and second engine vibration orders.Switchable transmission mount greatly reduces floor vibration across the rev range.
Significant reductions in vibration transmitted in to the body at the first and second vibration modes – the most important points that make the biggest difference to refinement.
ZF AL951 8-speed transmission. Eight speeds allows fuel economy improvement and exceptionally smooth gear changes (close ratios)Ability to block-shift, i.e. shift from cruising gear (8th) to optimum gear for maximum acceleration (e.g. 3rd) in a single shift.After cold start, hot coolant from engine is sent to the transmission to warm the transmission fluid quickly and reduce frictional losses as fast as possible.
Three clicks – one for each noise.Three distinct tones to reflect and enhance the sporty nature of the car.Chart is a sound map of exhaust sound frequency (x-axis) versus engine speed (y-axis). Allows us to show the different tones that the car produces, depending on engine speed and load. Made possible by careful exhaust tuning and dual-mode silencers (detail on next slide).Mention sports exhaust?
Innovative asymmetric muffler and balance tube work together to minimise exhaust note difference between V4 and V8 modes whilst maintaining sound quality. Dual-mode muffles include active exhaust butterfly valves, controlled by the engine ECU, to allow a switchable exhaust character depending on driving style and Drive/Sport mode.
Photo shows turbo at 950degC, on one of our Crewe development testbeds.
Characteristic flat Bentley torque curve from below 1700 rpm to 5000 rpmOutstanding specific torque (torque per litre).
Weight removed from the most influential area – the front axle.
Working closely with Audi from outset, involved with the design and development of the engine throughout the process.Vital to reduce fuel consumption, but not at the expense of torque, power or “Bentley feel”
Working closely with Audi from outset, involved with the design and development of the engine throughout the process.Vital to reduce fuel consumption, but not at the expense of torque, power or “Bentley feel”
Working closely with Audi from outset, involved with the design and development of the engine throughout the process.Vital to reduce fuel consumption, but not at the expense of torque, power or “Bentley feel”
Performance comparison against some key competitors. The new Bentley Continental GT V8 continues the Bentley tradition of producing world-beating Grand Tourers – now with the ability to travel even further on one tank of fuel, whilst maintaining competition-beating levels of performance and outstanding Bentley comfort and refinement.
From London to the Alps on a single tank.Surpasses our Geneva commitment!
