Comparison BMW 8 Series Gran Coupe (G16) 840i (333 Hp) Steptronic & BMW M8 Convertible (F91, facelift 2022) Competition 4.4 V8 (625 Hp) xDrive Steptronic Sport
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| Brand: | BMW | BMW |
| Model: | 8 Series | M8 |
| Generation: | 8 Series Gran Coupe (G16) | M8 Convertible (F91, facelift 2022) |
| Engine / modification: | 840i (333 Hp) Steptronic | Competition 4.4 V8 (625 Hp) xDrive Steptronic Sport |
| Production start: | 2020 year | 2022 year |
| Coupe type: | Coupe | Cabriolet |
| Powertrain Architecture: | Internal Combustion engine | |
| Num. of Doors: | 4 | 2 |
| Num. of seats: | 5 | 4 |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.29 | |
| Fuel tank volume: | 68 l | 68 l |
| Combined fuel consumption (WLTP): | 11.2-11.6 l/100 km | |
| Emission standard: | Euro 6d | Euro 6d |
| Power: | 333 hp | 625 hp |
| Max power in: | 5500-6250 rpm. | 6000 rpm. |
| Maximum speed: | 250 km/h | 250 , Electronically limited km/h |
| Acceleration from 0 to 100 km/h: | 5.4 sec | 3.3 sec |
| CO2 emissions (WLTP): | 255-264 g/km | |
| Torque: | 500 Nm @ 1700-4000 rpm. | 750 Nm @ 1800-5860 rpm. |
| Model Engine: | S63B44B | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2998 cm3 | 4395 cm3 |
| Engine oil capacity: | 6.5 l | 10 l |
| Fuel System: | Direct injection | Direct injection |
| Aspiration / Turbine: | BiTurbo | |
| Position of cylinders: | Inline | V engine |
| Valvetrain: | VALVETRONIC | |
| Number of cylinders: | 6 | 8 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 11 | 10 |
| Piston Stroke: | 94.6 mm | 88.3 mm |
| Cylinder Bore: | 82 mm | 89 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 8 Steptronic | 8 Steptronic Sport |
| Length: | 5074 mm | 4867 mm |
| Width: | 1932 mm | 1907 mm |
| Width including mirrors: | 2137 mm | |
| Height: | 1401 mm | 1353 mm |
| Wheelbase: | 3023 mm | 2827 mm |
| Front track: | 1627 mm | 1627 mm |
| Rear (Back) track: | 1671 mm | 1632 mm |
| Ride height(clearance): | 121 mm | |
| Front overhang: | 950 mm | |
| Rear overhang: | 1090 mm | |
| Minimum volume of Luggage (trunk): | 440 l | 280-350 l |
| Front suspension: | Double wishbone | Double wishbone |
| Rear suspension: | Multi-link independent | Multi-link independent |
| Max weight: | 2435 kg | 2440 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1815 kg | 2025 kg |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering |
| Max. roof load: | 75 kg | |
| Minimum turning circle (turning diameter): | 12.3 m | 12.2 m |
| Tire size: | Front wheel tires: 245/45 R18 100Y | 275/35 ZR20; 285/35 ZR20 |
| Wheel rims size: | Front wheel rims: 8J x 18 | 9.5J x 20; 10.5J x 20 |