Comparison BMW 1 Series Convertible (E88) 120i (170 Hp) & BMW 7 Series (F01) 750i (408 Hp) xDrive Steptronic
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| Brand: | BMW | BMW |
| Model: | 1 Series | 7 Series |
| Generation: | 1 Series Convertible (E88) | 7 Series (F01) |
| Engine / modification: | 120i (170 Hp) | 750i (408 Hp) xDrive Steptronic |
| Production start: | 2008 year | 2009 year |
| Production end: | 2011 year | 2011 year |
| Coupe type: | Cabriolet | Sedan |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 4 | 5 |
| Fuel consumption / economy - urban: | 8.9 l/100 km | 17.1 l/100 km |
| Fuel consumption / economy - extra urban: | 5.2 l/100 km | 8.9 l/100 km |
| Fuel consumption / economy - combined: | 6.6 l/100 km | 11.9 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.32 | 0.31 |
| Fuel tank volume: | 53 l | 82 l |
| Emission standard: | Euro 4 | Euro 5 |
| CO2 emissions: | 158 g/km | 278 g/km |
| Power: | 170 hp | 408 hp |
| Max power in: | 6700 rpm. | 5500-6400 rpm. |
| Maximum speed: | 220 km/h | 250 km/h |
| Acceleration from 0 to 100 km/h: | 8.4 sec | 5.1 sec |
| Torque: | 210 Nm @ 4250 rpm. | 600 Nm @ 1750-4500 rpm. |
| Model Engine: | N43B20 | N63B44 |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 1995 cm3 | 4395 cm3 |
| Engine oil capacity: | 4.25 l | 8.5 l |
| Coolant: | 7.2 l | 13.5 l |
| Fuel System: | Multi-point injection | Direct injection |
| Aspiration / Turbine: | Twin-power turbo | |
| Position of cylinders: | Inline | V engine |
| Valvetrain: | - | |
| Number of cylinders: | 4 | 8 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 12 | 10 |
| Piston Stroke: | 90 mm | 88.3 mm |
| Cylinder Bore: | 84 mm | 89 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 6 Steptronic | |
| Number of Gears (manual transmission): | 6 | |
| Length: | 4360 mm | 5072 mm |
| Width: | 1748 mm | 1902 mm |
| Height: | 1411 mm | 1479 mm |
| Wheelbase: | 2660 mm | 3070 mm |
| Front track: | 1480 mm | 1611 mm |
| Rear (Back) track: | 1513 mm | 1650 mm |
| Ride height(clearance): | 140 mm | 148 mm |
| Minimum volume of Luggage (trunk): | 260 l | 500 l |
| Maximum amount of Luggage (trunk): | 305 l | |
| Front suspension: | Double wishbone | Double wishbone |
| Rear suspension: | Multi-link independent | Multi-link independent |
| Max weight: | 1870 kg | 2660 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1430 kg | 2030 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | |
| Max. roof load: | 100 kg | |
| Minimum turning circle (turning diameter): | 10.7 m | 12.5 m |
| Permitted trailer load with brakes (12%): | 1200 kg | 2100 kg |
| Permitted trailer load without brakes: | 680 kg | 750 kg |
| Permitted towbar download: | 100 kg | |
| Tire size: | 205/55 R16 91 V | 245/50 R18 100Y |
| Wheel rims size: | 7J x 16 | 8J x 18 |