Comparison BMW 1 Series Hatchback 3dr (E81) 120d (177 Hp) Steptronic & BMW 7 Series (E23, facelift 1983) 735i (218 Hp)
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| Brand: | BMW | BMW |
| Model: | 1 Series | 7 Series |
| Generation: | 1 Series Hatchback 3dr (E81) | 7 Series (E23, facelift 1983) |
| Engine / modification: | 120d (177 Hp) Steptronic | 735i (218 Hp) |
| Production start: | 2007 year | 1983 year |
| Production end: | 2011 year | 1986 year |
| Coupe type: | Hatchback | Sedan |
| Num. of Doors: | 3 | 4 |
| Num. of seats: | 4 | 5 |
| Fuel consumption / economy - urban: | 7.2 l/100 km | 16.8 l/100 km |
| Fuel consumption / economy - extra urban: | 4.4 l/100 km | 8.1 l/100 km |
| Fuel consumption / economy - combined: | 5.4 l/100 km | 11.6 l/100 km |
| Fuel Type: | Diesel | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | 0.40 |
| Fuel tank volume: | 51 l | 100 l |
| Emission standard: | Euro 5 | |
| CO2 emissions: | 144 g/km | |
| Power: | 177 hp | 218 hp |
| Max power in: | 4000 rpm. | 5200 rpm. |
| Maximum speed: | 226 km/h | 217 km/h |
| Acceleration from 0 to 100 km/h: | 7.7 sec | 7.9 sec |
| Torque: | 350 Nm @ 1750-3000 rpm. | 310 Nm @ 4000 rpm. |
| Model Engine: | N47D20 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 1995 cm3 | 3430 cm3 |
| Engine oil capacity: | 5.2 l | |
| Coolant: | 7.4 l | |
| Fuel System: | Diesel Commonrail | Multi-point injection |
| Aspiration / Turbine: | Turbocharger | |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | - | |
| Number of cylinders: | 4 | 6 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 16 | 10 |
| Piston Stroke: | 90 mm | 86 mm |
| Cylinder Bore: | 84 mm | 92 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 6 Steptronic | |
| Number of Gears (manual transmission): | 5 | |
| Length: | 4239 mm | 4860 mm |
| Width: | 1748 mm | 1800 mm |
| Height: | 1421 mm | 1430 mm |
| Wheelbase: | 2660 mm | 2795 mm |
| Front track: | 1480 mm | 1502 mm |
| Rear (Back) track: | 1493 mm | 1524 mm |
| Ride height(clearance): | 145 mm | |
| Minimum volume of Luggage (trunk): | 330 l | 480 l |
| Maximum amount of Luggage (trunk): | 1150 l | |
| Front suspension: | Double wishbone | Independent, Spring McPherson, with stabilizer |
| Rear suspension: | Multi-link independent | Independent, spring |
| Max weight: | 1870 kg | 2010 kg |
| Front brakes: | Ventilated discs | Disc |
| Rear brakes: | Ventilated discs | Drum |
| Kerb Weight: | 1365 kg | 1500 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Max. roof load: | 75 kg | |
| Minimum turning circle (turning diameter): | 10.7 m | 11.6 m |
| Permitted trailer load with brakes (12%): | 1200 kg | |
| Permitted trailer load without brakes: | 720 kg | |
| Permitted towbar download: | 75 kg | |
| Tire size: | 205/55 R16 87 V | 205/70 VR 14 |
| Wheel rims size: | 7J x 16 | R14 |