Comparison BMW M8 Convertible (F91, facelift 2022) Competition 4.4 V8 (625 Hp) xDrive Steptronic Sport & Pontiac Firebird III 5.0i V8 (210 Hp)
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| Brand: | BMW | Pontiac |
| Model: | M8 | Firebird |
| Generation: | M8 Convertible (F91, facelift 2022) | Firebird III |
| Engine / modification: | Competition 4.4 V8 (625 Hp) xDrive Steptronic Sport | 5.0i V8 (210 Hp) |
| Production start: | 2022 year | 1985 year |
| Production end: | 1992 year | |
| Coupe type: | Cabriolet | Coupe |
| Powertrain Architecture: | Internal Combustion engine | |
| Num. of Doors: | 2 | 2 |
| Num. of seats: | 4 | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 68 l | 59 l |
| Combined fuel consumption (WLTP): | 11.2-11.6 l/100 km | |
| Emission standard: | Euro 6d | |
| Power: | 625 hp | 210 hp |
| Max power in: | 6000 rpm. | |
| Maximum speed: | 250 , Electronically limited km/h | |
| Acceleration from 0 to 100 km/h: | 3.3 sec | |
| CO2 emissions (WLTP): | 255-264 g/km | |
| Torque: | 750 Nm @ 1800-5860 rpm. | |
| Model Engine: | S63B44B | |
| Engine position: | Front, longitudinal | |
| Engine displacement: | 4395 cm3 | |
| Engine oil capacity: | 10 l | |
| Fuel System: | Direct injection | |
| Aspiration / Turbine: | BiTurbo | |
| Position of cylinders: | V engine | |
| Number of cylinders: | 8 | |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 10 | |
| Piston Stroke: | 88.3 mm | |
| Cylinder Bore: | 89 mm | |
| Wheel Drive: | All wheel drive (4x4) | |
| Number of Gears (automatic transmission): | 8 Steptronic Sport | |
| Length: | 4867 mm | 4839 mm |
| Width: | 1907 mm | 1839 mm |
| Width including mirrors: | 2137 mm | |
| Height: | 1353 mm | 1262 mm |
| Wheelbase: | 2827 mm | |
| Front track: | 1627 mm | |
| Rear (Back) track: | 1632 mm | |
| Front overhang: | 950 mm | |
| Rear overhang: | 1090 mm | |
| Minimum volume of Luggage (trunk): | 280-350 l | |
| Front suspension: | Double wishbone | |
| Rear suspension: | Multi-link independent | |
| Max weight: | 2440 kg | |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Ventilated discs | |
| Kerb Weight: | 2025 kg | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 12.2 m | |
| Tire size: | 275/35 ZR20; 285/35 ZR20 | |
| Wheel rims size: | 9.5J x 20; 10.5J x 20 |