The A8 4.0 TFSI quattro is an all wheel drive sedan/saloon motor car with a front mounted engine, sold by Audi.
It's powered courtesy of a turbocharged engine of 4 litre capacity. This powerplant features double overhead camshaft valve gear, a 90 degree V 8 cylinder layout, and 4 valves per cylinder. It has an output of 414 bhp (420 PS/309 kW) of power at 5000 rpm, and maximum torque of 600 N·m (443 lb·ft/61.2 kgm) at 1500-4500 rpm.
The power is transmitted to the wheels through an 8 speed automatic gearbox.
The Audi A8 4.0 TFSI quattro weighs a stated 1970 kg at the kerb.
Top stated speed is 250 km/h (155 mph), officially quoted fuel consumption figures are 13.0/7.3/9.4 l/100km urban/extra-urban/combined, and carbon dioxide emissions are 219.0 g/km.
Full specs
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| bodywork | |||
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| Body type | 4/5 seater sedan/saloon | ||
| Number of doors | 4 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2992 mm | 117.8 inches | |
| Track/tread (front) | 1644 mm | 64.7 inches | |
| Track/tread (rear) | 1635 mm | 64.4 inches | |
| Length | 5137 mm | 202.2 inches | |
| Width | 1949 mm | 76.7 inches | |
| Height | 1460 mm | 57.5 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.72 | ||
| Kerb weight | 1970 kg | 4343 lb | |
| Weight distribution | |||
| fuel tank capacity | 90 litres | 19.8 [23.8] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | 0.27 | ||
| Frontal area | 2.41 m² | ||
| CdA | 0.65 | ||
| Powertrain | |||
| engine type | turbocharged petrol | ||
| Engine manufacturer | Audi | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 4 litre 3993 cc (243.668 cu in) |
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| Bore × Stroke | 84.5 × 89 mm
3.33 × 3.5 in |
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| Bore/stroke ratio | 0.95 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 32 valves in total |
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| maximum power output | 420 PS (414 bhp) (309 kW) at 5000 rpm |
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| maximum torque | 600 Nm (443 ft·lb) (61.2 kgm) at 1500-4500 rpm |
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| Specific output | 77.3 kW/litre 105.1 ps/litre 103.7 bhp/litre 1.7 bhp/cu in |
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| Specific torque |
150.26 Nm/litre
1.82 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 10.1:1 | ||
| Fuel system | direct petrol injection | ||
| bmep (brake mean effective pressure) | 1888.3 kPa (273.9 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 499.13 cc | ||
| Aspiration | Turbo | ||
| Compressor | |||
| Intercooler | |||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | 4.6 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 250 km/h (155 mph) | ||
| Power-to-weight ratio | Higher is better 213.07 PS/tonne (1000 kg) 0.21 PS/kg 156.71 kW/tonne (1000 kg) 0.16 kW/kg 210.15 bhp/tonne (1000 kg) 0.21 bhp/kg 0.09 bhp/lb |
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| Weight-to-power ratio | Lower is better 6.38 kg/kW 10.66 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | 13.0/7.3/9.4 l/100km urban/extra-urban/combined | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 13.0/7.3/9.4 l/100km urban/extra-urban/combined | ||
| km/litre | 7.7/13.7/10.6 km/l urban/extra-urban/combined | ||
| UK MPG | 21.7/38.7/30.1 UK MPG urban/extra-urban/combined | ||
| US MPG | 18.1/32.2/25.0 US MPG urban/extra-urban/combined | ||
| Carbon dioxide emissions | 219.0 g/km NEDC | ||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | K | ||
| CO2 Effizienz (DE) | E | ||
| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | all wheel drive | ||
| Torque split | |||
| Steering | power assisted rack & pinion | ||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 8.0J x 18 | ||
| Wheel size rear | 8.0J x 18 | ||
| Tyres front | 235/55 R 18 104Y | ||
| Tyres rear | 235/55 R 18 102Y | ||
| Brakes F/R | VeDi/VeDi-S-ABS | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 8 speed automatic | ||
| Top gear ratio | 0.67 | ||
| Final drive ratio | 3.20 | ||
| general | |||
| Carfolio.com ID | 281765 | ||
| Production total | |||
| Model code | |||
| RAC rating | 35.4 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2012 Audi A8 4.0 TFSI quattro added 2012-07-22. Last modified 2020-02-02. |
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