2014 Audi S8
With 382 kW (520 hp) – the S8 is Audi’s big sports sedan. Its 4.0 TFSI paired with quattro all-wheel drive accelerates the car from 0 to 100 km/h (62.14 mph) in 4.1 seconds, yet consumes on average just 9.6 liters of fuel per 100 kilometers (24.50 US mpg), corresponding to 225 grams CO2 per kilometer (362.10 g/mile). The COD technology that greatly improves the efficiency of the sonorous, twin-turbo V8 under part load is largely responsible for this top value. In four-cylinder mode, Active Noise Cancellation (ANC) uses precise antiphase noise to eliminate intrusive noise in the interior, while active engine mounts dampen vibrations. The A8 4.0 TFSI quattro, the A8 L W12 quattro and the A8 hybrid also have the ANC system on board.
The Audi S8 is the only member of the A8 family whose exhaust system ends in two elliptical dual tailpipes. Dynamic steering, the quattro powertrain with sport differential and the adaptive air suspension sport with an S-specific setup are standard. The wheels are 20 inches in diameter, and the brake calipers on the front axle bear S8 emblems.
The Audi A8 can be distinguished visually by means of several distinctive design modifications The Audi design selection black/vermont brown with Carbon twill copper inlays is available for the interior.
In Detail
| type | Series Production Car |
| released at | 2013 Frankfurt Motor Show |
| engine | 4.0 TFSI |
| position | Front Longitudinal |
| aspiration | Turbocharged |
| valvetrain | DOHC, 4 Valves per Cyl |
| fuel feed | Direct Injection |
| displacement | 3993 cc / 243.67 in³ |
| bore | 84.5 mm / 3.33 in |
| stroke | 89 mm / 3.50 in |
| compression | 10.1:1 |
| power | 387.8 kw / 520 bhp @ 6000 rpm |
| specific output | 130.23 bhp per litre |
| bhp/weight | 247.03 bhp per tonne |
| torque | 652.1 nm / 481 ft lbs @ 1700 to 5500 rpm |
| body / frame | Aluminum Space Frame w/Steel Pilars |
| driven wheels | quattro AWD |
| front brakes | Ventilated Discs |
| rear brakes | Ventilated Discs |
| front wheels | F 50.8 x 22.9 cm / 20 x 9 in |
| rear wheels | R 50.8 x 22.9 cm / 20 x 9 in |
| steering | Rack & Pinion w/Servotronic Speed Sensitive Power Assist |
| f suspension | 5-Link w/Air Suspension |
| r suspension | Trapezoidal-link w/Air Suspension |
| curb weight | 2105 kg / 4642 lbs |
| wheelbase | 2990 mm / 117.7 in |
| length | 5140 mm / 202.4 in |
| width | 1950 mm / 76.8 in |
| height | 1460 mm / 57.5 in |
| transmission | 8-Speed Tiptronic Automatic |
| gear ratios | 4.71:1, 3.14:1, 2.11:1, 1.67:1, 1.29:1, 1.00:1, 0.84:1, 0.67:1 |
| final drive | 3.08:1 |
| top speed | ~250 kph / 155.25 mph |
| 0 – 100 kph | ~4.1 seconds |
| drag | 0.27 Cd |
| combined fuel econ eu | 9.6 L/100 km or 24.50 mpg-us |
| emission | 225 g/km |
| fuel capacity | 90 litres or 23.76 gal. |
