Comparison BMW 7 Series (E38) 728i (193 Hp) Steptronic & BMW 1 Series Hatchback (E87) 120i (150 Hp) Automatic & BMW 2 Series Convertible (F23) 218i (136 Hp) Steptronic
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| Brand: | BMW | BMW | BMW |
| Model: | 7 Series | 1 Series | 2 Series |
| Generation: | 7 Series (E38) | 1 Series Hatchback (E87) | 2 Series Convertible (F23) |
| Engine / modification: | 728i (193 Hp) Steptronic | 120i (150 Hp) Automatic | 218i (136 Hp) Steptronic |
| Production start: | 1995 year | 2004 year | 2015 year |
| Production end: | 1998 year | 2007 year | 2017 year |
| Coupe type: | Sedan | Hatchback | Cabriolet |
| Num. of Doors: | 4 | 5 | 2 |
| Num. of seats: | 5 | 5 | 4 |
| Fuel consumption / economy - urban: | 16.0 l/100 km | 11.0 l/100 km | 6.5-7.1 l/100 km |
| Fuel consumption / economy - extra urban: | 8.3 l/100 km | 6.2 l/100 km | 4.6-5.0 l/100 km |
| Fuel consumption / economy - combined: | 11.1 l/100 km | 7.9 l/100 km | 5.3-5.8 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | 0.32 | |
| Fuel tank volume: | 85 l | 50 l | 52 l |
| Emission standard: | Euro 6 | ||
| CO2 emissions: | 190 g/km | 124-134 g/km | |
| Power: | 193 hp | 150 hp | 136 hp |
| Max power in: | 5300 rpm. | 6200 rpm. | 4500-6000 rpm. |
| Maximum speed: | 225 km/h | 213 km/h | 205 km/h |
| Acceleration from 0 to 100 km/h: | 9.6 sec | 9.2 sec | 9.6 sec |
| Torque: | 280 Nm @ 3950 rpm. | 200 Nm @ 3600 rpm. | 220 Nm @ 1250 rpm. |
| Model Engine: | N46B20 | B38B15 | |
| Engine position: | Front, longitudinal | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2793 cm3 | 1995 cm3 | 1499 cm3 |
| Engine oil capacity: | 6.5 l | 4.25 l | 4.25 l |
| Coolant: | 10.5 l | 7.8 l | 7.7 l |
| Fuel System: | Multi-point injection | Multi-point injection | Direct injection |
| Aspiration / Turbine: | Twin-power turbo | ||
| Position of cylinders: | Inline | Inline | Inline |
| Valvetrain: | DOHC | - | |
| Number of cylinders: | 6 | 4 | 3 |
| Number of valves per cylinder: | 4 | 4 | 4 |
| Compression ratio: | 10.2 | 10.5 | 11 |
| Piston Stroke: | 84 mm | 90 mm | 94.6 mm |
| Cylinder Bore: | 84 mm | 84 mm | 82 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 5 Steptronic | 6 | 8 Steptronic |
| Length: | 4984 mm | 4227 mm | 4432 mm |
| Width: | 1862 mm | 1751 mm | 1774 mm |
| Width including mirrors: | 1933 mm | ||
| Height: | 1435 mm | 1430 mm | 1413 mm |
| Wheelbase: | 2930 mm | 2660 mm | 2690 mm |
| Front track: | 1552 mm | 1484 mm | 1521 mm |
| Rear (Back) track: | 1568 mm | 1497 mm | 1556 mm |
| Ride height(clearance): | 140 mm | ||
| Front overhang: | 737 mm | ||
| Rear overhang: | 830 mm | ||
| Minimum volume of Luggage (trunk): | 500 l | 330 l | 280 l |
| Maximum amount of Luggage (trunk): | 1150 l | 335 l | |
| Front suspension: | Wishbone | The depreciated rack | Independent, spring |
| Rear suspension: | Inclined Lever | The depreciated rack | Multi-link independent |
| Max weight: | 2235 kg | 1775 kg | 1985 kg |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Disc | Disc |
| Kerb Weight: | 1700 kg | 1275 kg | 1515 kg |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | Electric Steering | |
| Max. roof load: | 75 kg | ||
| Permitted trailer load with brakes (8%): | 1200 kg | ||
| Minimum turning circle (turning diameter): | 11.6 m | 10.9 m | |
| Permitted trailer load with brakes (12%): | 1200 kg | 1300 kg | |
| Permitted trailer load without brakes: | 665 kg | 750 kg | |
| Permitted towbar download: | 75 kg | 75 kg | |
| Tire size: | 215/65 R16 | 195/55 R16 | 205/50 R17; 225/45 R17; 245/40 R17; 225/40 R18; 245/35 R18 |
| Wheel rims size: | R16 | 6.5J X 16 | 7J x 17; 7.5J x 17; 8J x 17; 7.5J x 18; 8J x 18 |