Comparison Porsche 911 2.0 E (140 Hp) & BMW 7 Series (E23, facelift 1983) 728i (184 Hp)
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| Brand: | Porsche | BMW |
| Model: | 911 | 7 Series |
| Generation: | 911 | 7 Series (E23, facelift 1983) |
| Engine / modification: | 2.0 E (140 Hp) | 728i (184 Hp) |
| Production start: | 1968 year | 1983 year |
| Production end: | 1969 year | 1986 year |
| Coupe type: | Coupe | Sedan |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 2+2 | 5 |
| Fuel consumption / economy - urban: | 15.1 l/100 km | |
| Fuel consumption / economy - extra urban: | 7.9 l/100 km | |
| Fuel consumption / economy - combined: | 9.6 l/100 km | 11.1 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.40 | |
| Fuel tank volume: | 62 l | 100 l |
| Power: | 140 hp | 184 hp |
| Max power in: | 6500 rpm. | 5800 rpm. |
| Maximum speed: | 215 km/h | 201 km/h |
| Acceleration from 0 to 100 km/h: | 9.5 sec | |
| Torque: | 197 Nm @ 4500 rpm. | 240 Nm @ 4200 rpm. |
| Engine position: | Rear, longitudinal | Front, longitudinal |
| Engine displacement: | 1991 cm3 | 2788 cm3 |
| Engine oil capacity: | 9 l | |
| Fuel System: | Multi-point injection | |
| Position of cylinders: | Boxer | Inline |
| Number of cylinders: | 6 | 6 |
| Number of valves per cylinder: | 2 | 2 |
| Compression ratio: | 9.1 | 9.3 |
| Piston Stroke: | 66 mm | 80 mm |
| Cylinder Bore: | 80 mm | 86 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (manual transmission): | 5 | 5 |
| Length: | 4163 mm | 4860 mm |
| Width: | 1610 mm | 1800 mm |
| Height: | 1320 mm | 1430 mm |
| Wheelbase: | 2268 mm | 2795 mm |
| Front track: | 1364 mm | 1502 mm |
| Rear (Back) track: | 1345 mm | 1524 mm |
| Ride height(clearance): | 150 mm | |
| Minimum volume of Luggage (trunk): | 480 l | |
| Front suspension: | Independent, spring | Independent, Spring McPherson, with stabilizer |
| Rear suspension: | Independent, spring | Independent, spring |
| Max weight: | 1400 kg | 1980 kg |
| Front brakes: | Disc | |
| Rear brakes: | Drum | |
| Kerb Weight: | 1020 kg | 1470 kg |
| Minimum turning circle (turning diameter): | 10.7 m | 11.6 m |
| Tire size: | 195/70 R 14 | |
| Wheel rims size: | R14 |