Comparison BMW 8 Series (G15) 840i (340 Hp) xDrive Steptronic & BMW M4 (F82) 3.0 (450 Hp) Competition Package DCT
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| Brand: | BMW | BMW |
| Model: | 8 Series | M4 |
| Generation: | 8 Series (G15) | M4 (F82) |
| Engine / modification: | 840i (340 Hp) xDrive Steptronic | 3.0 (450 Hp) Competition Package DCT |
| Production start: | 2019 year | 2016 year |
| Production end: | 2020 year | |
| Coupe type: | Coupe | Coupe |
| Num. of Doors: | 2 | 2 |
| Num. of seats: | 4 | 4 |
| Fuel consumption / economy - urban: | 9.5-9.6 l/100 km | 11.1 l/100 km |
| Fuel consumption / economy - extra urban: | 6.4-6.5 l/100 km | 6.7 l/100 km |
| Fuel consumption / economy - combined: | 7.5-7.7 l/100 km | 8.3 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | 0.34 |
| Fuel tank volume: | 68 l | 60 l |
| Emission standard: | Euro 6d - TEMP | EURO VI |
| CO2 emissions: | 172-174 g/km | 194 g/km |
| Power: | 340 hp | 450 hp |
| Max power in: | 5000-6500 rpm. | 7000 rpm. |
| Maximum speed: | 250 km/h | 250 km/h |
| Acceleration from 0 to 100 km/h: | 4.7 sec | 4.0 sec |
| Torque: | 500 Nm @ 1600-4500 rpm. | 550 Nm @ 1850-5500 rpm. |
| Model Engine: | B58B30 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2998 cm3 | 2979 cm3 |
| Engine oil capacity: | 6.5 l | 6.5 l |
| Fuel System: | Direct injection | Direct injection |
| Aspiration / Turbine: | Twin-power turbo | Twin-power turbo |
| Position of cylinders: | Inline | Inline |
| Number of cylinders: | 6 | 6 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 11 | 10.2 |
| Piston Stroke: | 94.6 mm | 89.6 mm |
| Cylinder Bore: | 82 mm | 84 mm |
| Wheel Drive: | All wheel drive (4x4) | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | 7 DCT |
| Length: | 4843 mm | 4671 mm |
| Width: | 1902 mm | 1870 mm |
| Width including mirrors: | 2137 mm | |
| Height: | 1341 mm | 1392 mm |
| Wheelbase: | 2822 mm | 2812 mm |
| Front track: | 1627 mm | 1579 mm |
| Rear (Back) track: | 1642 mm | 1604 mm |
| Ride height(clearance): | 121 mm | 121 mm |
| Front overhang: | 953 mm | |
| Rear overhang: | 1076 mm | |
| Minimum volume of Luggage (trunk): | 420 l | 445 l |
| Front suspension: | Double wishbone | Independent, spring |
| Rear suspension: | Multi-link independent | Multi-link independent |
| Max weight: | 2280 kg | 2040 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1770 kg | 1540 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering |
| Max. roof load: | 75 kg | 75 kg |
| Minimum turning circle (turning diameter): | 11.9 m | 12.2 m |
| Tire size: | 245/45 R18 100Y XL; 275/40 R18 103Y XL | 265/30 ZR20 94Y; 285/30 ZR20 99Y |
| Wheel rims size: | 8J x 18; 9J x 18 | 9.0J x 20; 10.0J x 20 |