S5 Spec sheet.

Type: V8 gasoline direct injection DOHC

Arrangement: Front mounted, longitudinal

Bore 3.3268 in. 84.5 mm

Stroke 3.6535 in. 92.8 mm

Displacement 254.04 cu. in. 4163 cc

Compression ratio 11.0.1

Fuel requirement Unleaded Super, 95 RON (unleaded regular, 91 RON, as an alternative with slight reduction in performance)

Horsepower (SAE) 354 hp @ 6800 rpm

Max. Torque 325 lb-ft @ 3500 rpm

ENGINE DESIGN:
Cylinder block Aluminum alloy
Cylinder head Aluminum alloy
Valve train / intake DOHC, two-stage intake manifold
Cooling system Water-cooled, thermostatically controlled radiator fan
Fuel injection / Fully electronic engine management with FSI direct injection
Emission system Catalytic converters with oxygen sensors

ELECTRICAL SYSTEM:
Battery 12 volts 110 amp x h
Alternator 14 volts 180 amp x h

DRIVETRAIN:
Transmission 6-speed manual transmission with synchromesh on all gears, hydraulic single-disc clutch with dual mass flywheel

Type 6-speed Tiptronic automatic transmission
Gear ratios:
1st 3.667
2nd 2.050
3rd 1.462
4th 1.133
5th 0.919
6th 0.778
Reverse 3.330
Final Drive front / rear 3.889

Front Differential Hypoid gear, electronically locking (EDL)
Center Differential Self-locking center differential with assymetric/dynamic torque split 40F/60R
Rear Differential Hypoid gear, electronically locking (EDL)

Great starting point, I’d like to see this really expanded some with more information as it becomes available. Thanks for the post.