Comparison Alfa Romeo Arna (920) 1.2 (63 Hp) & BMW M4 Convertible (F83) 3.0 (431 Hp) DCT
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| Brand: | Alfa Romeo | BMW |
| Model: | Arna | M4 |
| Generation: | Arna (920) | M4 Convertible (F83) |
| Engine / modification: | 1.2 (63 Hp) | 3.0 (431 Hp) DCT |
| Production start: | 1983 year | 2014 year |
| Production end: | 1986 year | 2020 year |
| Coupe type: | Hatchback | Cabriolet |
| Num. of Doors: | 3/5 | 2 |
| Num. of seats: | 5 | 4 |
| Fuel consumption / economy - urban: | 9.9 l/100 km | 11.5 l/100 km |
| Fuel consumption / economy - extra urban: | 7.1 l/100 km | |
| Fuel consumption / economy - combined: | 8.7 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.34 | |
| Fuel tank volume: | 60 l | |
| Emission standard: | Euro 6 | |
| CO2 emissions: | 203 g/km | |
| Power: | 63 hp | 431 hp |
| Max power in: | 5500-7300 rpm. | |
| Maximum speed: | 250 km/h | |
| Acceleration from 0 to 100 km/h: | 4.4 sec | |
| Torque: | 550 Nm @ 1850-5500 rpm. | |
| Model Engine: | S55B30 | |
| Engine position: | Front, longitudinal | |
| Engine displacement: | 2979 cm3 | |
| Engine oil capacity: | 6.5 l | |
| Coolant: | 13.9 l | |
| Fuel System: | Direct injection | |
| Aspiration / Turbine: | Twin-power turbo | |
| Position of cylinders: | Inline | |
| Number of cylinders: | 6 | |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 10.2 | |
| Piston Stroke: | 89.6 mm | |
| Cylinder Bore: | 84 mm | |
| Wheel Drive: | Rear wheel drive | |
| Number of Gears (automatic transmission): | 7 DCT | |
| Length: | 4671 mm | |
| Width: | 1870 mm | |
| Width including mirrors: | 2014 mm | |
| Height: | 1386 mm | |
| Wheelbase: | 2812 mm | |
| Front track: | 1579 mm | |
| Rear (Back) track: | 1603 mm | |
| Ride height(clearance): | 116 mm | |
| Front overhang: | 811 mm | |
| Rear overhang: | 1048 mm | |
| Minimum volume of Luggage (trunk): | 220 l | |
| Maximum amount of Luggage (trunk): | 370 l | |
| Front suspension: | Double wishbone | |
| Rear suspension: | Multi-link independent | |
| Max weight: | 2250 kg | |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Ventilated discs | |
| Kerb Weight: | 1790 kg | |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 12.2 m | |
| Tire size: | 255/40 ZR18 95Y; 275/40 ZR18 99Y | |
| Wheel rims size: | 9J x 18; 10J x 18 |