Comparison BMW M8 Convertible 4.4 V8 (600 Hp) xDrive Steptronic & Alfa Romeo 147 (facelift 2004) 5-doors 2.0 (150 Hp) Automatic
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| Brand: | BMW | Alfa Romeo |
| Model: | M8 | 147 |
| Generation: | M8 Convertible | 147 (facelift 2004) 5-doors |
| Engine / modification: | 4.4 V8 (600 Hp) xDrive Steptronic | 2.0 (150 Hp) Automatic |
| Production start: | 2019 year | 2004 year |
| Production end: | 2010 year | |
| Coupe type: | Cabriolet | Hatchback |
| Num. of Doors: | 2 | 5 |
| Num. of seats: | 4 | 5 |
| Fuel consumption / economy - urban: | 15.2 l/100 km | 12.1 l/100 km |
| Fuel consumption / economy - extra urban: | 7.9-8.2 l/100 km | 7.0 l/100 km |
| Fuel consumption / economy - combined: | 10.6-10.8 l/100 km | 8.9 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 68 l | 60 l |
| Emission standard: | Euro 6 d-TEMP | |
| CO2 emissions: | 241-246 g/km | 211 g/km |
| Power: | 600 hp | 150 hp |
| Max power in: | 6000 rpm. | 6300 rpm. |
| Maximum speed: | 250 km/h | 208 km/h |
| Acceleration from 0 to 100 km/h: | 3.4 sec | 9.3 sec |
| Acceleration from 0 to 200 km/h: | 11.3 sec | |
| Torque: | 750 Nm @ 1800-5600 rpm. | 181 Nm @ 3800 rpm. |
| Model Engine: | S63B44 | AR 32310 |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 4395 cm3 | 1970 cm3 |
| Engine oil capacity: | 10.0 l | 4.4 l |
| Coolant: | 7.2 l | |
| Fuel System: | Direct injection | Multi-point injection |
| Aspiration / Turbine: | Twin-power turbo | |
| Position of cylinders: | V engine | Inline |
| Number of cylinders: | 8 | 4 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 10 | 10 |
| Piston Stroke: | 88.3 mm | 91 mm |
| Cylinder Bore: | 89 mm | 83 mm |
| Wheel Drive: | All wheel drive (4x4) | Front wheel drive |
| Number of Gears (automatic transmission): | 8 M Steptronic | 5 |
| Length: | 4867 mm | 4223 mm |
| Width: | 1907 mm | 1729 mm |
| Width including mirrors: | 2137 mm | |
| Height: | 1353 mm | 1442 mm |
| Wheelbase: | 2827 mm | 2546 mm |
| Front track: | 1627 mm | 1518 mm |
| Rear (Back) track: | 1632 mm | 1502 mm |
| Ride height(clearance): | 120 mm | |
| Front overhang: | 950 mm | |
| Rear overhang: | 1090 mm | |
| Minimum volume of Luggage (trunk): | 292 l | |
| Maximum amount of Luggage (trunk): | 350 l | 1042 l |
| Front suspension: | Double wishbone | |
| Rear suspension: | Multi-link independent | |
| Max weight: | 2440 kg | 1770 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs |
| Kerb Weight: | 2010 kg | 1275 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 12.2 m | |
| Tire size: | Front wheel tires: 275/40 ZR19 105Y XL | 215/45 R17 |
| Wheel rims size: | Front wheel rims: 9.5J x 19 | R17 |