Comparison Alpina Roadster V8 4.8 i V8 32V (381 Hp) & Alpina B12 (E32) 5.0 i V12 (350 Hp)
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| Brand: | Alpina | Alpina |
| Model: | Roadster V8 | B12 |
| Generation: | Roadster V8 | B12 (E32) |
| Engine / modification: | 4.8 i V8 32V (381 Hp) | 5.0 i V12 (350 Hp) |
| Production start: | 2002 year | 1988 year |
| Production end: | 2006 year | 1994 year |
| Coupe type: | Roadster | Sedan |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 2 | 5 |
| Fuel consumption / economy - urban: | 15 l/100 km | 19.4 l/100 km |
| Fuel consumption / economy - extra urban: | 7.5 l/100 km | 8.8 l/100 km |
| Fuel consumption / economy - combined: | 9.3 l/100 km | 10.7 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 73 l | |
| Power: | 381 hp | 350 hp |
| Max power in: | 5800 rpm. | 5300 rpm. |
| Maximum speed: | 260 km/h | 275 km/h |
| Acceleration from 0 to 100 km/h: | 5.3 sec | 6.9 sec |
| Torque: | 520 Nm @ 3800 rpm. | 470 Nm @ 4000 rpm. |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 4837 cm3 | 4988 cm3 |
| Fuel System: | Multi-point injection | Multi-point injection |
| Position of cylinders: | V engine | V engine |
| Valvetrain: | DOHC | |
| Number of cylinders: | 8 | 12 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 10.5 | 9.5 |
| Piston Stroke: | 89 mm | 75 mm |
| Cylinder Bore: | 84 mm | |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | - | 4 |
| Number of Gears (manual transmission): | 5 | |
| Length: | 4400 mm | 5025 mm |
| Width: | 1830 mm | |
| Height: | 1320 mm | |
| Wheelbase: | 2505 mm | 2945 mm |
| Front track: | 1550 mm | |
| Rear (Back) track: | 1570 mm | |
| Front suspension: | Double wishbone | Coil spring |
| Rear suspension: | The depreciated rack | Helical spring |
| Max weight: | 1950 kg | 2380 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 1615 kg | 1860 kg |
| ABS: | yes | yes |
| Power steering: | Hydraulic Steering | Hydraulic Steering |
| Tire size: | 255/35 R20 | 265/40 R17 |