Comparison BMW 3 Series Convertible (E30, facelift 1987) 320i (129 Hp) & BMW 7 Series (G12) 750Li (450 Hp) Steptronic
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| Brand: | BMW | BMW |
| Model: | 3 Series | 7 Series |
| Generation: | 3 Series Convertible (E30, facelift 1987) | 7 Series (G12) |
| Engine / modification: | 320i (129 Hp) | 750Li (450 Hp) Steptronic |
| Production start: | 1987 year | 2015 year |
| Production end: | 1994 year | 2019 year |
| Coupe type: | Cabriolet | Sedan |
| Powertrain Architecture: | Internal Combustion engine | |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 4 | 5 |
| Fuel consumption / economy - urban: | 13 l/100 km | 11.3-11.6 l/100 km |
| Fuel consumption / economy - extra urban: | 7.5 l/100 km | 6.2-6.3 l/100 km |
| Fuel consumption / economy - combined: | 9.5 l/100 km | 8.0-8.3 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.35 | 0.26 |
| Fuel tank volume: | 62 l | 78 l |
| Emission standard: | EURO VI | |
| CO2 emissions: | 187-192 g/km | |
| Power: | 129 hp | 450 hp |
| Max power in: | 6000 rpm. | 5500-6000 rpm. |
| Maximum speed: | 195 km/h | 250 km/h |
| Acceleration from 0 to 100 km/h: | 11.5 sec | 4.7 sec |
| Torque: | 164 Nm @ 4300 rpm. | 650 Nm @ 1800-4500 rpm. |
| Model Engine: | M20B20 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 1991 cm3 | 4395 cm3 |
| Engine oil capacity: | 4.3 l | 9.5 l |
| Coolant: | 10.5 l | |
| Fuel System: | Multi-point indirect injection | Direct injection |
| Aspiration / Turbine: | Naturally aspirated engine | Twin-power turbo |
| Position of cylinders: | Inline | V engine |
| Valvetrain: | SOHC | |
| Number of cylinders: | 6 | 8 |
| Number of valves per cylinder: | 2 | 4 |
| Compression ratio: | 8.8 | 10.5 |
| Piston Stroke: | 66 mm | 88.3 mm |
| Cylinder Bore: | 80 mm | 89 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | |
| Number of Gears (manual transmission): | 5 | |
| Length: | 4450 mm | 5238 mm |
| Width: | 1645 mm | 1902 mm |
| Height: | 1370 mm | 1485 mm |
| Wheelbase: | 2570 mm | 3210 mm |
| Front track: | 1405 mm | 1612 mm |
| Rear (Back) track: | 1415 mm | 1640 mm |
| Ride height(clearance): | 135 mm | |
| Front overhang: | 880 mm | |
| Rear overhang: | 1148 mm | |
| Minimum volume of Luggage (trunk): | 312 l | 515 l |
| Front suspension: | Coil spring | Double wishbone |
| Rear suspension: | Helical spring | Multi-link independent |
| Max weight: | 1680 kg | 2555 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs |
| Kerb Weight: | 1280 kg | 1865 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | |
| Max. roof load: | 100 kg | |
| Minimum turning circle (turning diameter): | 12.8 m | |
| Permitted trailer load with brakes (12%): | 1200 kg | 2100 kg |
| Permitted trailer load without brakes: | 500 kg | 750 kg |
| Permitted towbar download: | 100 kg | |
| Tire size: | 195/65 R14 | 245/50 R18 100Y; 245/45 R19; 275/40 R19; 245/40 R20; 275/35 R20; 245/35 R21; 275/30 R21 |
| Wheel rims size: | 14 | 8J x 18; 8.5J x 19; 9.5J x 19; 8.5J x 20; 10J x 20; 8.5J x 21; 10J x 21 |