Comparison BMW i3 18.8 kWh (170 Hp) & BMW 7 Series (E65, facelift 2005) 730i (258 Hp) Steptronic & BMW 7 Series (E23) 732i (197 Hp)
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| Brand: | BMW | BMW | BMW |
| Model: | i3 | 7 Series | 7 Series |
| Generation: | i3 | 7 Series (E65, facelift 2005) | 7 Series (E23) |
| Engine / modification: | 18.8 kWh (170 Hp) | 730i (258 Hp) Steptronic | 732i (197 Hp) |
| Production start: | 2013 year | 2005 year | 1979 year |
| Production end: | 2017 year | 2008 year | 1983 year |
| Coupe type: | Hatchback | Sedan | Sedan |
| Num. of Doors: | 5 | 4 | 4 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 14.6 l/100 km | 16.7 l/100 km | |
| Fuel consumption / economy - extra urban: | 7.5 l/100 km | ||
| Fuel consumption / economy - combined: | 10.1 l/100 km | ||
| Fuel Type: | Electricity | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.29 | ||
| Fuel tank volume: | 88 l | 100 l | |
| Emission standard: | Euro 4 | ||
| Power: | 170 hp | 258 hp | 197 hp |
| Max power in: | 6600 rpm. | 5500 rpm. | |
| Maximum speed: | 150 km/h | 237 km/h | 205 km/h |
| Acceleration from 0 to 100 km/h: | 7.2 sec | 7.8 sec | 8.7 sec |
| Torque: | 250 Nm | 300 Nm @ 2500-4000 rpm. | 280 Nm @ 4300 rpm. |
| Model Engine: | N52B30 | M30B32 | |
| Engine position: | Front, longitudinal | Front, longitudinal | |
| Engine displacement: | 2996 cm3 | 3210 cm3 | |
| Engine oil capacity: | 6.5 l | ||
| Coolant: | 11.4 l | ||
| Fuel System: | Multi-point injection | Multi-point injection | |
| Position of cylinders: | Inline | Inline | |
| Valvetrain: | DOHC | SOHC | |
| Number of cylinders: | 6 | 6 | |
| Number of valves per cylinder: | 4 | 2 | |
| Compression ratio: | 10.7 | 9.3 | |
| Piston Stroke: | 88 mm | 86 mm | |
| Cylinder Bore: | 85 mm | 89 mm | |
| All-electric range: | 190 (160) km | ||
| Electric motor power: | 170 | ||
| Battery capacity: | 18.8 kWh | ||
| System power: | 170 Hp hp/ rpm. | ||
| System torque: | 250 Nm Nm/ rpm. | ||
| Wheel Drive: | Rear wheel drive | Rear wheel drive | |
| Number of Gears (automatic transmission): | 6 Steptronic | ||
| Number of Gears (manual transmission): | 4 | ||
| Length: | 3999 mm | 5039 mm | 4860 mm |
| Width: | 1775 mm | 1902 mm | 1800 mm |
| Height: | 1578 mm | 1491 mm | 1430 mm |
| Wheelbase: | 2570 mm | 2990 mm | 2795 mm |
| Front track: | 1571 mm | 1578 mm | 1502 mm |
| Rear (Back) track: | 1576 mm | 1596 mm | 1524 mm |
| Ride height(clearance): | 132 mm | ||
| Minimum volume of Luggage (trunk): | 500 l | ||
| Front suspension: | The depreciated rack | Independent, Spring McPherson, with stabilizer | |
| Rear suspension: | Helical spring | Independent, spring | |
| Max weight: | 1620 kg | 2385 kg | 2000 kg |
| Front brakes: | Ventilated discs | Ventilated discs | |
| Rear brakes: | Disc | Disc | |
| Kerb Weight: | 1195 kg | 1805 kg | 1530 kg |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | ||
| Power steering: | Hydraulic Steering | ||
| Minimum turning circle (turning diameter): | 12.1 m | ||
| Tire size: | 155/70 R19 | 245/55 R17 | 205/70 R14 |
| Wheel rims size: | 5J x 19 | R17 | 6.5J x 14 |