Comparison BMW 1 Series Coupe (E82) 120i (170 Hp) & Audi TT Roadster (8J) 2.0 TDI (170 Hp) quattro & BMW 7 Series (E65) 745i (333 Hp) Steptronic
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| Brand: | BMW | Audi | BMW |
| Model: | 1 Series | TT | 7 Series |
| Generation: | 1 Series Coupe (E82) | TT Roadster (8J) | 7 Series (E65) |
| Engine / modification: | 120i (170 Hp) | 2.0 TDI (170 Hp) quattro | 745i (333 Hp) Steptronic |
| Production start: | 2009 year | 2008 year | 2001 year |
| Production end: | 2011 year | 2010 year | 2005 year |
| Coupe type: | Coupe | Roadster | Sedan |
| Num. of Doors: | 2 | 2 | 4 |
| Num. of seats: | 4 | 2 | 5 |
| Fuel consumption / economy - urban: | 8.6 l/100 km | 7.2 l/100 km | 16.2 l/100 km |
| Fuel consumption / economy - extra urban: | 5.4 l/100 km | 4.5 l/100 km | 8.6 l/100 km |
| Fuel consumption / economy - combined: | 6.6 l/100 km | 5.5 l/100 km | 11.4 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Diesel | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | 0.32 | 0.29 |
| Fuel tank volume: | 53 l | 60 l | 88 l |
| Emission standard: | Euro 5 | Euro 5 | Euro 3 |
| CO2 emissions: | 153 g/km | 144 g/km | |
| Power: | 170 hp | 170 hp | 333 hp |
| Max power in: | 6700 rpm. | 4200 rpm. | 6100 rpm. |
| Maximum speed: | 224 km/h | 223 km/h | 250 km/h |
| Acceleration from 0 to 100 km/h: | 7.8 sec | 7.7 sec | 6.3 sec |
| Torque: | 210 Nm @ 4250 rpm. | 350 Nm @ 1750-2500 rpm. | 450 Nm @ 3600 rpm. |
| Model Engine: | N43B20 | CBBB, CFGB | N62B44 |
| Engine position: | Front, longitudinal | Front, transverse | Front, longitudinal |
| Engine displacement: | 1995 cm3 | 1968 cm3 | 4398 cm3 |
| Engine oil capacity: | 4.25 l | 4.0 l | 8 l |
| Coolant: | 7.2 l | 8.7 l | 14.1 l |
| Fuel System: | Direct injection | Diesel Commonrail | Multi-point injection |
| Aspiration / Turbine: | Turbo / Intercooler (Turbocharging / Intercooler) | ||
| Position of cylinders: | Inline | Inline | V engine |
| Valvetrain: | DOHC | DOHC | |
| Number of cylinders: | 4 | 4 | 8 |
| Number of valves per cylinder: | 4 | 4 | 4 |
| Compression ratio: | 12 | 16.5 | 10 |
| Piston Stroke: | 90 mm | 95.5 mm | 82.7 mm |
| Cylinder Bore: | 84 mm | 81 mm | 92 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) | Rear wheel drive |
| Number of Gears (automatic transmission): | 6 Steptronic | ||
| Number of Gears (manual transmission): | 6 | 6 | |
| Length: | 4360 mm | 4178 mm | 5029 mm |
| Width: | 1748 mm | 1842 mm | 1902 mm |
| Height: | 1423 mm | 1358 mm | 1492 mm |
| Wheelbase: | 2660 mm | 2468 mm | 2990 mm |
| Front track: | 1474 mm | 1572 mm | 1578 mm |
| Rear (Back) track: | 1507 mm | 1558 mm | 1582 mm |
| Ride height(clearance): | 147 mm | ||
| Minimum volume of Luggage (trunk): | 370 l | 250 l | 500 l |
| Front suspension: | Double wishbone | Independent, Spring McPherson, with stabilizer | The depreciated rack |
| Rear suspension: | Multi-link independent | Independent, spring multi-link with stabilizer | Helical spring |
| Max weight: | 1740 kg | 1735 kg | 2450 kg |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Disc | Ventilated discs |
| Kerb Weight: | 1300 kg | 1415 kg | 1860 kg |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Hydraulic Steering | Hydraulic Steering |
| Max. roof load: | 75 kg | ||
| Minimum turning circle (turning diameter): | 10.7 m | 10.9 m | 12.1 m |
| Permitted trailer load with brakes (12%): | 1200 kg | ||
| Permitted trailer load without brakes: | 680 kg | ||
| Tire size: | 205/55 R16 87V | 225/55 R16 | 245/55 R17 |
| Wheel rims size: | 7 J x 16 | 7.5J x 16 | 8J x 17 |