S8 specifications

Engine Specifications
Arrangement Front mounted, longitudinal
Bore 3.33 in. [84.5 mm]
Stroke 3.51 in [89.5 mm]
Type 4.0-liter Turbocharged DOHC V8 gasoline engine with Audi FSI® direct injection
Displacement 4.0 liter [243.6 cu in, 3991 cc]
Fuel Requirement Premium unleaded
Compression Ratio 9.3:1
Horsepower 520 hp @ 6000 rpm
Torque 481 lb-ft. @ 5500 rpm
Performance
0-60 mph 3.9 sec.
Top track speed 130 mph



Fuel Economy
City 15 mpg
Highway 26 mpg
Combined 19 mpg
Capacities
Engine Oil 8.7 qt. [8.3 liter]
Fuel Tank 23.8 gal. [90 liter]
Cooling System 12.2 qt. [11.5 liter]
Electrical System
Battery 12 volts [92 amp]
Alternator 14 volts [190 amp]
Exterior Dimensions
Wheelbase 117.8 in. [2992 mm]
Overall Length 202.2 in. [5137 mm]
Height (unloaded) 57.5 in. [1459 mm]
Front Track 64.7 in. [1644 mm]
Rear Track 64.4 in. [1635 mm]
Overall Width (including mirrors) 83.1 in. [2111 mm]
Drag Coefficient Cw= 0.26
Curb Weight 4641 lbs. [2105 kg]
Interior Dimensions
EPA Class Mid-size
Seating Capacity 5
Luggage Capacity (EPA) 13.2 cu ft.
Front Head Room 37.2 in. [944 mm]
Rear Head Room 38.1 in. [967 mm]
Front Shoulder Room 59.1 in. [1501 mm]
Rear Shoulder Room 57.8 in. [1468 mm]
Front Leg Room 41.4 in. [1051 mm]
Rear Leg Room 38.7 in. [983 mm]
Steering
Ratio 15.1:1
Turning Circle (curb-to-curb) 40.4 ft. [12.2 m]
Type Hydraulic, vehicle speed sensitive power rack and pinion
Body
Material Audi Space Frame (ASF®) construction (aluminum alloy) with aluminum alloy body panels
Corrosion Protection Multi-step anti-corrosion
Drivetrain
Transmission Eight-speed Tiptronic® automatic transmission with Audi quattro® all-wheel drive
Front Differential Hypoid gear, electronically locking (EDL)
Center Differential Torque sensing
Rear Differential Hypoid gear, electronically locking (EDL)
  Tiptronic®
Gear Ratios: 1st 4.714
2nd 3.143
3rd 2.106
4th 1.667
5th 1.285
6th 1.000
7th 0.839
8th 0.667
Reverse 3.317
Final Drive 3.204
Suspension
Front Five-link, twin-tube gas-filled shock absorbers with anti-roll bar
Rear Trapezoidal-link, twin-tube gas-filled shock absorbers with anti-roll bar
Wheels
Type 21" 5-triple-spoke-design alloy wheels with summer tires [Standard]
Type 21" 5-arm-Rotor spoke design Titanium finish with summer performance tires [Optional]
Type 21" 5-arm-Rotor-spoke design alloy wheels with summer tires [Optional]
Brakes
System Dual circuit brake system with diagonal split, Anti-lock Brake System (ABS) and Electronic Brake-pressure Distribution (EBD) and Electronic Stability Control (ESC) with traction control (ASR); tandem brake booster
Front, Size, and Type 15.7 in. [400 mm] Ventilated disc
Rear, Size and Type 14.0 in. [356 mm] Ventilated disc
Parking Brake Electromechanically actuated at rear wheels, with drive-off feature
Warranty/Maintenance
Audi New Vehicle Limited Warranty The first scheduled maintenance service at 5,000 miles or twelve months, whichever comes first, free of charge
Four years or 50,000 miles, whichever comes first, new vehicle limited warranty
Twelve-year limited warranty against corrosion perforation
Audi 24-hour Roadside Assistance for four years

* Please see disclaimers for more information