Comparison Audi S7 Sportback (C7 facelift 2014) 4.0 TFSI V8 (450 Hp) quattro S tronic & BMW Z4 (E89) 35i (306 Hp) sDrive Automatic
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| Brand: | Audi | BMW |
| Model: | S7 | Z4 |
| Generation: | S7 Sportback (C7 facelift 2014) | Z4 (E89) |
| Engine / modification: | 4.0 TFSI V8 (450 Hp) quattro S tronic | 35i (306 Hp) sDrive Automatic |
| Production start: | 2014 year | 2009 year |
| Production end: | 2018 year | 2013 year |
| Coupe type: | Hatchback | Cabriolet |
| Num. of Doors: | 5 | 2 |
| Num. of seats: | 4 | 2 |
| Fuel consumption / economy - urban: | 13.2 l/100 km | 12.6 l/100 km |
| Fuel consumption / economy - extra urban: | 7.0 l/100 km | 6.9 l/100 km |
| Fuel consumption / economy - combined: | 9.3 l/100 km | 9.0 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.3 | |
| Fuel tank volume: | 75 l | 55 l |
| Emission standard: | Euro 6 | |
| CO2 emissions: | 215 g/km | 210 g/km |
| Power: | 450 hp | 306 hp |
| Max power in: | 5800-6400 rpm. | 5800 rpm. |
| Maximum speed: | 250 km/h | 250 km/h |
| Acceleration from 0 to 100 km/h: | 4.6 sec | 5.1 sec |
| Torque: | 550 Nm @ 1400-5700 rpm. | 400 Nm @ 1300-5000 rpm. |
| Model Engine: | N54B30 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 3993 cm3 | 2979 cm3 |
| Engine oil capacity: | 8.3 l | 6.5 l |
| Coolant: | 12 l | 8.5 l |
| Fuel System: | Direct injection | Direct injection |
| Maximum engine speed: | 6400 rpm. | |
| Aspiration / Turbine: | BiTurbo | Twin-power turbo |
| Position of cylinders: | V engine | Inline |
| Valvetrain: | DOHC | |
| Number of cylinders: | 8 | 6 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 10.1 | 10.2 |
| Piston Stroke: | 89 mm | 89.6 mm |
| Cylinder Bore: | 84.5 mm | 84 mm |
| Wheel Drive: | All wheel drive (4x4) | Rear wheel drive |
| Number of Gears (automatic transmission): | 7 S-tronic | 8 |
| Length: | 4980 mm | 4239 mm |
| Width: | 1911 mm | 1790 mm |
| Width including mirrors: | 2139 mm | |
| Height: | 1408 mm | 1291 mm |
| Wheelbase: | 2916 mm | 2496 mm |
| Front track: | 1641 mm | 1511 mm |
| Rear (Back) track: | 1632 mm | 1559 mm |
| Front overhang: | 941 mm | |
| Rear overhang: | 1123 mm | |
| Minimum volume of Luggage (trunk): | 535 l | |
| Maximum amount of Luggage (trunk): | 1390 l | |
| Front suspension: | Independent multi-link | |
| Rear suspension: | Independent on trapezoidal lever | |
| Max weight: | 2565 kg | 1855 kg |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Ventilated discs | |
| Kerb Weight: | 1955 kg | 1600 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | |
| Max. roof load: | 100 kg | |
| Permitted trailer load with brakes (8%): | 2100 kg | |
| Minimum turning circle (turning diameter): | 11.9 m | |
| Permitted trailer load with brakes (12%): | 2100 kg | |
| Permitted trailer load without brakes: | 750 kg | |
| Permitted towbar download: | 85 kg | |
| Tire size: | 255/40 R19 | 225/45 R17 W |
| Wheel rims size: | 8.5J x 19 | 8J x 17 |