Comparison BMW 7 Series (E23) 728 (170 Hp) Automatic & BMW 7 Series (E23) 728i (184 Hp) & BMW 7 Series (E65) 730d (218 Hp) Steptronic
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| Brand: | BMW | BMW | BMW |
| Model: | 7 Series | 7 Series | 7 Series |
| Generation: | 7 Series (E23) | 7 Series (E23) | 7 Series (E65) |
| Engine / modification: | 728 (170 Hp) Automatic | 728i (184 Hp) | 730d (218 Hp) Steptronic |
| Production start: | 1977 year | 1979 year | 2002 year |
| Production end: | 1979 year | 1983 year | 2005 year |
| Coupe type: | Sedan | Sedan | Sedan |
| Num. of Doors: | 4 | 4 | 4 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 15.1 l/100 km | 12.1 l/100 km | |
| Fuel consumption / economy - extra urban: | 6.5 l/100 km | ||
| Fuel consumption / economy - combined: | 8.5 l/100 km | ||
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.28 | ||
| Fuel tank volume: | 90 l | 100 l | 88 l |
| Emission standard: | Euro 3 | ||
| Power: | 170 hp | 184 hp | 218 hp |
| Max power in: | 5800 rpm. | 5800 rpm. | 4000 rpm. |
| Maximum speed: | 186 km/h | 195 km/h | 235 km/h |
| Acceleration from 0 to 100 km/h: | 11.9 sec | 9.5 sec | 8 sec |
| Torque: | 233 Nm @ 4000 rpm. | 235 Nm @ 4300 rpm. | 500 Nm @ 2000 rpm. |
| Model Engine: | M30B28 | M30B28 | M57D30 |
| Engine position: | Front, longitudinal | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2788 cm3 | 2788 cm3 | 2993 cm3 |
| Engine oil capacity: | 5.8 l | 5.8 l | 8.25 l |
| Coolant: | 10 l | ||
| Fuel System: | Multi-point injection | Multi-point injection | Diesel Commonrail |
| Aspiration / Turbine: | Turbocharger / Intercooler | ||
| Position of cylinders: | Inline | Inline | Inline |
| Valvetrain: | SOHC | SOHC | DOHC |
| Number of cylinders: | 6 | 6 | 6 |
| Number of valves per cylinder: | 2 | 2 | 4 |
| Compression ratio: | 9 | 9.3 | 17 |
| Piston Stroke: | 80 mm | 80 mm | 90 mm |
| Cylinder Bore: | 86 mm | 86 mm | 84 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive | |
| Number of Gears (automatic transmission): | 3 | 6 Steptronic | |
| Number of Gears (manual transmission): | 4 | ||
| Length: | 4860 mm | 4860 mm | 5029 mm |
| Width: | 1800 mm | 1800 mm | 1902 mm |
| Height: | 1430 mm | 1430 mm | 1492 mm |
| Wheelbase: | 2795 mm | 2795 mm | 2990 mm |
| Front track: | 1502 mm | 1502 mm | 1578 mm |
| Rear (Back) track: | 1524 mm | 1524 mm | 1582 mm |
| Ride height(clearance): | 132 mm | 132 mm | |
| Minimum volume of Luggage (trunk): | 500 l | ||
| Front suspension: | Independent, Spring McPherson, with stabilizer | Independent, Spring McPherson, with stabilizer | The depreciated rack |
| Rear suspension: | Independent, spring | Independent, spring | Helical spring |
| Max weight: | 2000 kg | 1960 kg | 2480 kg |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Disc | Disc |
| Kerb Weight: | 1550 kg | 1490 kg | 1900 kg |
| ABS: | yes | ||
| Steering type: | Steering rack and pinion | ||
| Power steering: | Hydraulic Steering | ||
| Minimum turning circle (turning diameter): | 12.1 m | ||
| Tire size: | 195/70 HR14; 220/55 HR390 TRX | 195/70 R14 | 245/55 R17 |
| Wheel rims size: | 6.0J x 14; 165 TR 390 | 6.0J x 14; | 8J x 17 |