Comparison BMW Z4 (E89) 35 is (340 Hp) sDrive Automatic & Audi A6 (4A,C4) 2.5 TDI (140 Hp) quattro
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| Brand: | BMW | Audi |
| Model: | Z4 | A6 |
| Generation: | Z4 (E89) | A6 (4A,C4) |
| Engine / modification: | 35 is (340 Hp) sDrive Automatic | 2.5 TDI (140 Hp) quattro |
| Production start: | 2010 year | 1995 year |
| Production end: | 2013 year | 1997 year |
| Coupe type: | Cabriolet | Sedan |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 2 | 5 |
| Fuel consumption / economy - urban: | 12.6 l/100 km | 8.3 l/100 km |
| Fuel consumption / economy - extra urban: | 6.9 l/100 km | 4.7 l/100 km |
| Fuel consumption / economy - combined: | 9.0 l/100 km | 6.5 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.32 | |
| Fuel tank volume: | 55 l | 80 l |
| CO2 emissions: | 210 g/km | |
| Power: | 340 hp | 140 hp |
| Max power in: | 5900 rpm. | 4000 rpm. |
| Maximum speed: | 250 km/h | 206 km/h |
| Acceleration from 0 to 100 km/h: | 4.8 sec | 10 sec |
| Torque: | 450 Nm @ 1500-4500 rpm. | 290 Nm @ 1900 rpm. |
| Model Engine: | N54B30 | AEL |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2979 cm3 | 2461 cm3 |
| Engine oil capacity: | 6.5 l | 5.0 l |
| Coolant: | 8.5 l | 6.5 l |
| Fuel System: | Direct injection | Diesel - Standard diesel injection (SDI) |
| Aspiration / Turbine: | Twin-power turbo | Turbo / Intercooler (Turbocharging / Intercooler) |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | OHC | |
| Number of cylinders: | 6 | 5 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 10.2 | 20 |
| Piston Stroke: | 89.6 mm | 95.5 mm |
| Cylinder Bore: | 84 mm | 81 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 7 | - |
| Number of Gears (manual transmission): | 6 | |
| Length: | 4244 mm | 4797 mm |
| Width: | 1790 mm | 1783 mm |
| Height: | 1284 mm | 1430 mm |
| Wheelbase: | 2496 mm | 2692 mm |
| Front track: | 1511 mm | 1520 mm |
| Rear (Back) track: | 1537 mm | 1524 mm |
| Maximum amount of Luggage (trunk): | 510 l | |
| Front suspension: | Independent, Spring McPherson, with stabilizer | |
| Rear suspension: | Semi-independent, spring | |
| Max weight: | 1855 kg | 2110 kg |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Disc | |
| Kerb Weight: | 1600 kg | 1560 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | |
| Max. roof load: | 100 kg | |
| Permitted trailer load with brakes (8%): | 1800 kg | |
| Minimum turning circle (turning diameter): | 11.4 m | |
| Permitted trailer load with brakes (12%): | 1600 kg | |
| Permitted trailer load without brakes: | 750 kg | |
| Permitted towbar download: | 75 kg | |
| Tire size: | 225/40 R18 W; 255/35 R18 W | 195/65 R15 |
| Wheel rims size: | 8J x 18 | 6J x 15 |