Comparison BMW 8 Series (G15) 840i (333 Hp) xDrive Steptronic & BMW 3 Series Sedan (E30) 320i (129 Hp)
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| Brand: | BMW | BMW |
| Model: | 8 Series | 3 Series |
| Generation: | 8 Series (G15) | 3 Series Sedan (E30) |
| Engine / modification: | 840i (333 Hp) xDrive Steptronic | 320i (129 Hp) |
| Production start: | 2020 year | 1985 year |
| Production end: | 1991 year | |
| Coupe type: | Coupe | Sedan |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 4 | 5 |
| Fuel consumption / economy - urban: | 13.0 l/100 km | |
| Fuel consumption / economy - extra urban: | 7.5 l/100 km | |
| Fuel consumption / economy - combined: | 9.5 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | |
| Fuel tank volume: | 68 l | 55 l |
| Emission standard: | Euro 6d | |
| Power: | 333 hp | 129 hp |
| Max power in: | 5500-6250 rpm. | 6000 rpm. |
| Maximum speed: | 250 km/h | 197 km/h |
| Acceleration from 0 to 100 km/h: | 4.9 sec | 10.6 sec |
| Torque: | 500 Nm @ 1700-4000 rpm. | 164 Nm @ 4300 rpm. |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2998 cm3 | 1991 cm3 |
| Engine oil capacity: | 6.5 l | |
| Fuel System: | Direct injection | Multi-point injection |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | VALVETRONIC | |
| Number of cylinders: | 6 | 6 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 11 | 8.8 |
| Piston Stroke: | 94.6 mm | 66 mm |
| Cylinder Bore: | 82 mm | 80 mm |
| Wheel Drive: | All wheel drive (4x4) | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | |
| Number of Gears (manual transmission): | 5 | |
| Length: | 4843 mm | 4325 mm |
| Width: | 1902 mm | 1645 mm |
| Height: | 1341 mm | 1380 mm |
| Wheelbase: | 2822 mm | 2570 mm |
| Front track: | 1627 mm | 1405 mm |
| Rear (Back) track: | 1642 mm | 1415 mm |
| Ride height(clearance): | 121 mm | |
| Minimum volume of Luggage (trunk): | 420 l | 425 l |
| Front suspension: | Double wishbone | Helical spring |
| Rear suspension: | Multi-link independent | Helical spring |
| Max weight: | 2280 kg | 1620 kg |
| Front brakes: | Ventilated discs | Disc |
| Rear brakes: | Ventilated discs | Drum |
| Kerb Weight: | 1795 kg | 1160 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | Hydraulic Steering |
| Max. roof load: | 75 kg | |
| Minimum turning circle (turning diameter): | 11.9 m | |
| Tire size: | Front wheel tires: 245/45 R18 100Y XL | 195/65 R14 |
| Wheel rims size: | Front wheel rims: 8J x 18 | R14 |