Comparison BMW M3 (E90) 4.0 (420 Hp) & Audi A4 allroad (B9 8W) 3.0 TDI V6 (272 Hp) quattro Tiptronic & Audi A4 Avant (B8 8K, facelift 2011) 2.0 TFSI (211 Hp) quattro S tronic start/stop
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| Brand: | BMW | Audi | Audi |
| Model: | M3 | A4 | A4 |
| Generation: | M3 (E90) | A4 allroad (B9 8W) | A4 Avant (B8 8K, facelift 2011) |
| Engine / modification: | 4.0 (420 Hp) | 3.0 TDI V6 (272 Hp) quattro Tiptronic | 2.0 TFSI (211 Hp) quattro S tronic start/stop |
| Production start: | 2008 year | 2016 year | 2012 year |
| Production end: | 2011 year | 2013 year | |
| Coupe type: | Sedan | Combi | Combi |
| Num. of Doors: | 4 | 5 | 5 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 17.7 l/100 km | 5.7-5.8 l/100 km | 8.7 l/100 km |
| Fuel consumption / economy - extra urban: | 9.3 l/100 km | 5.0-5.3 l/100 km | 6 l/100 km |
| Fuel consumption / economy - combined: | 12.4 l/100 km | 5.3-5.5 l/100 km | 7.1 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Diesel | Petrol (Gasoline) |
| Drag coefficient: | 0.31 | 0.32 | |
| Fuel tank volume: | 63 l | 58 l | 63 l |
| Emission standard: | Euro 5 | EURO VI | Euro 5 |
| CO2 emissions: | 139-146 g/km | 163 g/km | |
| Power: | 420 hp | 272 hp | 211 hp |
| Max power in: | 8300 rpm. | 3250-4250 rpm. | 4300-6000 rpm. |
| Maximum speed: | 250 km/h | 250 km/h | 237 km/h |
| Acceleration from 0 to 100 km/h: | 4.9 sec | 5.5 sec | 6.6 sec |
| Torque: | 400 Nm @ 3900 rpm. | 600 Nm/1500-3000 rpm. | 350 Nm @ 1500-4500 rpm. |
| Model Engine: | S65B40 | CAEB, CDNC, CPMA | |
| Engine position: | Front, longitudinal | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 3999 cm3 | 2967 cm3 | 1984 cm3 |
| Engine oil capacity: | 8.8 l | 4.6 l | |
| Coolant: | 11.4 l | ||
| Fuel System: | Multi-point injection | Diesel Commonrail | Direct injection |
| Aspiration / Turbine: | Turbo / Intercooler (Turbocharging / Intercooler) | Turbo / Intercooler (Turbocharging / Intercooler) | |
| Position of cylinders: | V engine | V engine | Inline |
| Valvetrain: | DOHC | ||
| Number of cylinders: | 8 | 6 | 4 |
| Number of valves per cylinder: | 4 | 4 | 4 |
| Compression ratio: | 12 | 16 | 9.6 |
| Piston Stroke: | 75.2 mm | 91.4 mm | 92.8 mm |
| Cylinder Bore: | 92 mm | 83 mm | 82.5 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 8 tiptronic | 7 S tronic | |
| Number of Gears (manual transmission): | 6 | ||
| Length: | 4580 mm | 4750 mm | 4699 mm |
| Width: | 1817 mm | 1842 mm | 1826 mm |
| Width including mirrors: | 2022 mm | 2040 mm | |
| Height: | 1447 mm | 1493 mm | 1436 mm |
| Wheelbase: | 2761 mm | 2818 mm | 2808 mm |
| Front track: | 1540 mm | 1578 mm | 1564 mm |
| Rear (Back) track: | 1539 mm | 1566 mm | 1551 mm |
| Front overhang: | 894 mm | 862 mm | |
| Rear overhang: | 1038 mm | 1029 mm | |
| Minimum volume of Luggage (trunk): | 450 l | 505 l | 490 l |
| Maximum amount of Luggage (trunk): | 1510 l | 1430 l | |
| Front suspension: | Coil spring | Independent multi-link | Multi-link suspension |
| Rear suspension: | Helical spring | Independent, spring multi-link with stabilizer | Independent on trapezoidal lever |
| Max weight: | 2150 kg | 2320 kg | 2180 kg |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc | Disc |
| Kerb Weight: | 1605 kg | 1730 kg | 1610 kg |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering | Electric Steering |
| Max. roof load: | 75 kg | 90 kg | 90 kg |
| Permitted trailer load with brakes (8%): | 2100 kg | 1900 kg | |
| Minimum turning circle (turning diameter): | 11.7 m | 11.6 m | 11.5 m |
| Permitted trailer load with brakes (12%): | 1900 kg | ||
| Permitted trailer load without brakes: | 750 kg | 750 kg | |
| Permitted towbar download: | 80 kg | 80 kg | |
| Tire size: | 245/40 R18; 265/40 R18 | 225/55 R16 | |
| Wheel rims size: | 8.5J x 18; 9.5J x 18 | 7.5J x 16 |