Comparison Alpina B8 Gran Coupe (2021) 4.4 V8 (621 Hp) AWD Switch-Tronic & Bentley Bentayga 4.0 diesel V8 (435 Hp) AWD Automatic
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| Brand: | Alpina | Bentley |
| Model: | B8 | Bentayga |
| Generation: | B8 Gran Coupe (2021) | Bentayga |
| Engine / modification: | 4.4 V8 (621 Hp) AWD Switch-Tronic | 4.0 diesel V8 (435 Hp) AWD Automatic |
| Production start: | 2021 year | 2017 year |
| Production end: | 2020 year | |
| Coupe type: | Coupe | SUV |
| Num. of Doors: | 4 | 5 |
| Num. of seats: | 5 | 4 |
| Fuel consumption / economy - urban: | 9.0 l/100 km | |
| Fuel consumption / economy - extra urban: | 7.4 l/100 km | |
| Fuel consumption / economy - combined: | 7.9 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.31 | |
| Fuel tank volume: | 68 l | 85 l |
| Combined fuel consumption (WLTP): | 11.9 l/100 km | |
| Emission standard: | Euro 6d-ISC-FCM | Euro 6 |
| CO2 emissions: | 210 g/km | |
| Power: | 621 hp | 435 hp |
| Max power in: | 5500-6500 rpm. | 3750-5000 rpm. |
| Maximum speed: | 324 km/h | 270 km/h |
| Acceleration from 0 to 100 km/h: | 3.4 sec | 4.8 sec |
| CO2 emissions (WLTP): | 270 g/km | |
| Torque: | 800 Nm @ 2000-5000 rpm. | 900 Nm @ 1000-3250 rpm. |
| Model Engine: | N63B44T3 | CZAC |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 4395 cm3 | 3996 cm3 |
| Engine oil capacity: | 11.1 l | 9.1 l |
| Coolant: | 16.6 l | |
| Fuel System: | Direct injection | Diesel Commonrail |
| Aspiration / Turbine: | Twin-Turbo | |
| Position of cylinders: | V engine | |
| Number of cylinders: | 8 | 8 |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 10.5 | |
| Piston Stroke: | 88.3 mm | |
| Cylinder Bore: | 89 mm | |
| Wheel Drive: | All wheel drive (4x4) | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 8 Switch-Tronic | 8 |
| Length: | 5092 mm | 5140 mm |
| Width: | 1932 mm | 1998 mm |
| Width including mirrors: | 2137 mm | 2224 mm |
| Height: | 1428 mm | 1722 mm |
| Wheelbase: | 3023 mm | 2995 mm |
| Front track: | 1623 mm | |
| Rear (Back) track: | 1666 mm | |
| Ride height(clearance): | 135 mm | |
| Minimum volume of Luggage (trunk): | 440 l | 431 l |
| Maximum amount of Luggage (trunk): | 1774 l | |
| Max weight: | 2600 kg | 3250 kg |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Ventilated discs | |
| Kerb Weight: | 2175 kg | 2505 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | Electric Steering |
| Minimum turning circle (turning diameter): | 12.6 m | |
| Tire size: | Front wheel tires: 245/35 ZR21 96Y | |
| Wheel rims size: | Front wheel rims: 8.5J x 21 |