Comparison BMW 8 Series (E31) 850 Ci 5.0 (300 Hp) & BYD Seal Long Range Performance 82.5 kWh (530 Hp) BEV 4WD & BMW 8 Series Convertible (G14) 840i (340 Hp) xDrive Steptronic
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| Brand: | BMW | BYD | BMW |
| Model: | 8 Series | Seal | 8 Series |
| Generation: | 8 Series (E31) | Seal | 8 Series Convertible (G14) |
| Engine / modification: | 850 Ci 5.0 (300 Hp) | Long Range Performance 82.5 kWh (530 Hp) BEV 4WD | 840i (340 Hp) xDrive Steptronic |
| Production start: | 1989 year | 2022 year | 2019 year |
| Production end: | 1994 year | 2020 year | |
| Coupe type: | Coupe | Cabriolet | |
| Powertrain Architecture: | BEV (Electric Vehicle) | ||
| Num. of Doors: | 2 | 4 | 2 |
| Num. of seats: | 4 | 5 | 4 |
| Fuel consumption / economy - urban: | 19.8 l/100 km | 9.7-9.8 l/100 km | |
| Fuel consumption / economy - extra urban: | 8.8 l/100 km | 6.6-6.7 l/100 km | |
| Fuel consumption / economy - combined: | 10.4 l/100 km | 7.7-7.8 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Electricity | Petrol (Gasoline) |
| Drag coefficient: | 0.31 | ||
| Fuel tank volume: | 90 l | 68 l | |
| Emission standard: | Euro 6d - TEMP | ||
| CO2 emissions: | 175-178 g/km | ||
| Power: | 300 hp | 340 hp | |
| Max power in: | 5200 rpm. | 5000-6500 rpm. | |
| Maximum speed: | 250 km/h | 250 km/h | |
| Acceleration from 0 to 100 km/h: | 6.8 sec | 3.8 sec | 4.9 sec |
| Torque: | 450 Nm @ 4100 rpm. | 500 Nm @ 1600-4500 rpm. | |
| Model Engine: | M70B50 | B58B30 | |
| Engine position: | Front, longitudinal | Front, longitudinal | |
| Engine displacement: | 4988 cm3 | 2998 cm3 | |
| Engine oil capacity: | 7.5 l | 6.5 l | |
| Coolant: | 13.0 l | ||
| Fuel System: | Multi-point injection | Direct injection | |
| Aspiration / Turbine: | Twin-power turbo | ||
| Position of cylinders: | V engine | Inline | |
| Valvetrain: | - | ||
| Number of cylinders: | 12 | 6 | |
| Number of valves per cylinder: | 4 | ||
| Compression ratio: | 8.8 | 11 | |
| Piston Stroke: | 75 mm | 94.6 mm | |
| Cylinder Bore: | 84 mm | 82 mm | |
| Electric motor power: | 217 | ||
| Electric motor Torque: | 310 Nm | ||
| System power: | 530 Hp hp/ rpm. | ||
| System torque: | 670 Nm Nm/ rpm. | ||
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | - | 8 Steptronic | |
| Number of Gears (manual transmission): | 6 | ||
| Length: | 4780 mm | 4800 mm | 4843 mm |
| Width: | 1855 mm | 1875 mm | 1902 mm |
| Width including mirrors: | 2137 mm | ||
| Height: | 1340 mm | 1460 mm | 1339 mm |
| Wheelbase: | 2685 mm | 2920 mm | 2822 mm |
| Front track: | 1555 mm | 1620 mm | 1627 mm |
| Rear (Back) track: | 1560 mm | 1625 mm | 1642 mm |
| Ride height(clearance): | 118 mm | ||
| Front overhang: | 953 mm | ||
| Rear overhang: | 1076 mm | ||
| Minimum volume of Luggage (trunk): | 320 l | 280 l | |
| Maximum amount of Luggage (trunk): | 350 l | ||
| Front suspension: | Wishbone | Double wishbone | Double wishbone |
| Rear suspension: | Helical spring | Multi-link independent | |
| Max weight: | 2210 kg | 2400 kg | |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1790 kg | 1880 kg | |
| ABS: | yes | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | Electric Steering | Electric Steering |
| Permitted trailer load with brakes (8%): | 1305 kg | ||
| Minimum turning circle (turning diameter): | 11.4 m | 11.9 m | |
| Permitted trailer load with brakes (12%): | 1305 kg | ||
| Tire size: | 235/50 R16 | 235/45 R19 | 245/45 R18 100Y XL; 275/40 R18 103Y XL |
| Wheel rims size: | R16 | 19 | 8J x 18; 9J x 18 |