Comparison BMW 8 Series Gran Coupe (G16) M850i V8 (530 Hp) xDrive Steptronic & Alfa Romeo 156 Sport Wagon (facelift 2003) 2.0 i 16V JTS (165 Hp)
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| Brand: | BMW | Alfa Romeo |
| Model: | 8 Series | 156 |
| Generation: | 8 Series Gran Coupe (G16) | 156 Sport Wagon (facelift 2003) |
| Engine / modification: | M850i V8 (530 Hp) xDrive Steptronic | 2.0 i 16V JTS (165 Hp) |
| Production start: | 2019 year | 2003 year |
| Production end: | 2020 year | 2006 year |
| Coupe type: | Coupe | Combi |
| Num. of Doors: | 4 | 5 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 13.7-13.9 l/100 km | 12.5 l/100 km |
| Fuel consumption / economy - extra urban: | 7.7-7.8 l/100 km | 6.8 l/100 km |
| Fuel consumption / economy - combined: | 9.9-10 l/100 km | 8.9 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.29 | |
| Fuel tank volume: | 68 l | 63 l |
| Emission standard: | Euro 6d-Temp | |
| CO2 emissions: | 226-229 g/km | |
| Power: | 530 hp | 165 hp |
| Max power in: | 5500-6000 rpm. | 6400 rpm. |
| Maximum speed: | 250 km/h | 220 km/h |
| Acceleration from 0 to 100 km/h: | 3.9 sec | 8.2 sec |
| Torque: | 750 Nm @ 1800-4600 rpm. | 206 Nm @ 3250 rpm. |
| Model Engine: | N63B44 | 937A1000 |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 4395 cm3 | 1970 cm3 |
| Engine oil capacity: | 10.5 l | 4.4 l |
| Coolant: | 6.9 l | |
| Fuel System: | Direct injection | Direct injection |
| Aspiration / Turbine: | Twin-power turbo | |
| Position of cylinders: | V engine | Inline |
| Valvetrain: | VALVETRONIC | |
| Number of cylinders: | 8 | 4 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 10.5 | 11.3 |
| Piston Stroke: | 88.3 mm | 91 mm |
| Cylinder Bore: | 89 mm | 83 mm |
| Wheel Drive: | All wheel drive (4x4) | Front wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | - |
| Number of Gears (manual transmission): | 5 | |
| Length: | 5082 mm | 4441 mm |
| Width: | 1932 mm | 1743 mm |
| Width including mirrors: | 2137 mm | |
| Height: | 1407 mm | 1430 mm |
| Wheelbase: | 3023 mm | 2595 mm |
| Front track: | 1627 mm | 1511 mm |
| Rear (Back) track: | 1671 mm | 1519 mm |
| Front overhang: | 953 mm | |
| Rear overhang: | 1106 mm | |
| Minimum volume of Luggage (trunk): | 360 l | |
| Maximum amount of Luggage (trunk): | 440 l | 1180 l |
| Front suspension: | Double wishbone | Double wishbone |
| Rear suspension: | Multi-link independent | Double wishbone |
| Max weight: | 2600 kg | 1815 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 1995 kg | 1335 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Hydraulic Steering |
| Max. roof load: | 75 kg | |
| Tire size: | 245/35 R20 95Y XL; 275/30 R20 97Y XL | 205/60 R15 |
| Wheel rims size: | 8J x 20; 9J x 20 | 6.5J x 15 |