Comparison Alpina B8 Gran Coupe (2021) 4.4 V8 (621 Hp) AWD Switch-Tronic & Mercedes-Benz C-class T-mod (S204) C 280 (231Hp) 7G-Tronic & Vauxhall VXR8 GTS-R 6.2 V8 (595 Hp)
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| Brand: | Alpina | Mercedes-Benz | Vauxhall |
| Model: | B8 | C-class | VXR8 |
| Generation: | B8 Gran Coupe (2021) | C-class T-mod (S204) | VXR8 GTS-R |
| Engine / modification: | 4.4 V8 (621 Hp) AWD Switch-Tronic | C 280 (231Hp) 7G-Tronic | 6.2 V8 (595 Hp) |
| Production start: | 2021 year | 2007 year | 2017 year |
| Production end: | 2011 year | ||
| Coupe type: | Coupe | Combi | Sedan |
| Num. of Doors: | 4 | 5 | 4 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 13.4 l/100 km | 18.2 l/100 km | |
| Fuel consumption / economy - extra urban: | 7.1 l/100 km | 9.6 l/100 km | |
| Fuel consumption / economy - combined: | 9.4 l/100 km | 12.7 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.31 | ||
| Fuel tank volume: | 68 l | 66 l | 71 l |
| Combined fuel consumption (WLTP): | 11.9 l/100 km | ||
| Emission standard: | Euro 6d-ISC-FCM | EURO IV | |
| CO2 emissions: | 363 g/km | ||
| Power: | 621 hp | 231 hp | 595 hp |
| Max power in: | 5500-6500 rpm. | 6000 rpm. | 6150 rpm. |
| Maximum speed: | 324 km/h | 240 km/h | 250 km/h |
| Acceleration from 0 to 100 km/h: | 3.4 sec | 7.5 sec | |
| CO2 emissions (WLTP): | 270 g/km | ||
| Torque: | 800 Nm @ 2000-5000 rpm. | 300 Nm/2500 rpm. | 740 Nm @ 3850 rpm. |
| Model Engine: | N63B44T3 | LSA X | |
| Engine position: | Front, longitudinal | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 4395 cm3 | 2996 cm3 | 6162 cm3 |
| Engine oil capacity: | 11.1 l | ||
| Fuel System: | Direct injection | Multi-point injection | |
| Aspiration / Turbine: | Turbocharger | ||
| Position of cylinders: | V engine | V engine | |
| Valvetrain: | - | OHV | |
| Number of cylinders: | 8 | 6 | 8 |
| Number of valves per cylinder: | 4 | 4 | 2 |
| Compression ratio: | 10.5 | 11.1 | 9 |
| Piston Stroke: | 88.3 mm | 82.1 mm | 92 mm |
| Cylinder Bore: | 89 mm | 88 mm | 103.2 mm |
| Wheel Drive: | All wheel drive (4x4) | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 Switch-Tronic | 7 | |
| Number of Gears (manual transmission): | 6 | ||
| Length: | 5092 mm | 4601 mm | 5044 mm |
| Width: | 1932 mm | 1770 mm | 1899 mm |
| Width including mirrors: | 2137 mm | ||
| Height: | 1428 mm | 1459 mm | 1468 mm |
| Wheelbase: | 3023 mm | 2700 mm | 2915 mm |
| Front track: | 1623 mm | 1549 mm | 1616 mm |
| Rear (Back) track: | 1666 mm | 1552 mm | 1590 mm |
| Ride height(clearance): | 135 mm | ||
| Minimum volume of Luggage (trunk): | 440 l | ||
| Max weight: | 2600 kg | ||
| Front brakes: | Ventilated discs | ||
| Rear brakes: | Ventilated discs | ||
| Kerb Weight: | 2175 kg | ||
| ABS: | yes | ||
| Steering type: | Steering rack and pinion | ||
| Power steering: | Electric Steering | Electric Steering | |
| Minimum turning circle (turning diameter): | 12.6 m | 11.4 m | |
| Tire size: | Front wheel tires: 245/35 ZR21 96Y | 205/55 R16 W | 255/35 R20; 275/35 R20 |
| Wheel rims size: | Front wheel rims: 8.5J x 21 | R16 | R20 |