Comparison Alpina B7 (F01) 4.4 V8 (540 Hp) BITURBO & Alpina Roadster S 3.3 i 24V (300 Hp)
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| Brand: | Alpina | Alpina |
| Model: | B7 | Roadster S |
| Generation: | B7 (F01) | Roadster S |
| Engine / modification: | 4.4 V8 (540 Hp) BITURBO | 3.3 i 24V (300 Hp) |
| Production start: | 2013 year | 2003 year |
| Production end: | 2015 year | 2006 year |
| Coupe type: | Sedan | Cabriolet |
| Num. of Doors: | 4 | 2 |
| Num. of seats: | 5 | 2 |
| Fuel consumption / economy - urban: | 13.5 l/100 km | 15 l/100 km |
| Fuel consumption / economy - extra urban: | 7.8 l/100 km | 7 l/100 km |
| Fuel consumption / economy - combined: | 9.9 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 80 l | 55 l |
| Emission standard: | Euro 5 | |
| Power: | 540 hp | 300 hp |
| Max power in: | 5200-6250 rpm. | 6300 rpm. |
| Maximum speed: | 312 km/h | 265 km/h |
| Acceleration from 0 to 100 km/h: | 4.6 sec | 5.3 sec |
| Torque: | 730 Nm @ 2800-5000 rpm. | 362 Nm @ 4800 rpm. |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 4395 cm3 | 3346 cm3 |
| Fuel System: | Direct injection | Multi-point injection |
| Aspiration / Turbine: | Twin-Turbo | |
| Position of cylinders: | V engine | Inline |
| Valvetrain: | DOHC | |
| Number of cylinders: | 8 | 6 |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 10 | 10.2 |
| Piston Stroke: | 88.3 mm | 93.8 mm |
| Cylinder Bore: | 89 mm | 87 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 | - |
| Number of Gears (manual transmission): | 5 | |
| Length: | 5092 mm | 4090 mm |
| Width: | 1902 mm | 1780 mm |
| Height: | 1485 mm | 1300 mm |
| Wheelbase: | 3070 mm | 2500 mm |
| Front track: | 1621 mm | 1470 mm |
| Rear (Back) track: | 1628 mm | 1520 mm |
| Minimum volume of Luggage (trunk): | 500 l | 240 l |
| Maximum amount of Luggage (trunk): | 260 l | |
| Front suspension: | The depreciated rack | |
| Rear suspension: | Double wishbone | |
| Max weight: | 2660 kg | 1620 kg |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Ventilated discs | |
| Kerb Weight: | 2040 kg | 1320 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Minimum turning circle (turning diameter): | 9.8 m | |
| Tire size: | 245/35 ZR21; 285/30 ZR21 | 235/35 R19; 265/30 R19 |
| Wheel rims size: | 8.5J x 21; 10J x 21 | 8.5J-9.5J X 19 |