Comparison BMW 6 Series Gran Turismo (G32 LCI, facelift 2020) 640d (340 Hp) MHEV xDrive Steptronic & Alfa Romeo 75 (162 B, facelift 1988) 1.8 i.e. (122 Hp)
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| Brand: | BMW | Alfa Romeo |
| Model: | 6 Series | 75 |
| Generation: | 6 Series Gran Turismo (G32 LCI, facelift 2020) | 75 (162 B, facelift 1988) |
| Engine / modification: | 640d (340 Hp) MHEV xDrive Steptronic | 1.8 i.e. (122 Hp) |
| Production start: | 2020 year | 1988 year |
| Production end: | 1991 year | |
| Coupe type: | Sedan | |
| Num. of Doors: | 5 | 4 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 6.7-6.9 l/100 km | 10.5 l/100 km |
| Fuel consumption / economy - extra urban: | 4.6-4.8 l/100 km | 6.9 l/100 km |
| Fuel consumption / economy - combined: | 5.4-5.6 l/100 km | 8.8 l/100 km |
| Fuel Type: | Diesel | Petrol (Gasoline) |
| Drag coefficient: | 0.27 | 0.36 |
| Fuel tank volume: | 66 l | 49 l |
| Emission standard: | EURO 6d | EURO I |
| CO2 emissions: | 141-147 g/km | |
| Power: | 340 hp | 122 hp |
| Max power in: | 4400 rpm. | 5500 rpm. |
| Maximum speed: | 250 km/h | 190 km/h |
| Acceleration from 0 to 100 km/h: | 5.3 sec | 10.4 sec |
| Torque: | 700 Nm @ 1750-2250 rpm. | 160 Nm @ 4000 rpm. |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2993 cm3 | 1779 cm3 |
| Engine oil capacity: | 7.0 l | 5.6 l |
| Coolant: | 8 l | |
| Fuel System: | Diesel Commonrail | Multi-point injection |
| Aspiration / Turbine: | Twin-power turbo | |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | OHC | |
| Number of cylinders: | 6 | 4 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 16.5 | 9.5 |
| Piston Stroke: | 90 mm | 88.5 mm |
| Cylinder Bore: | 84 mm | 80 mm |
| Electric motor power: | 11 | |
| Battery capacity: | 0.528 kWh | |
| Wheel Drive: | All wheel drive (4x4) | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | |
| Number of Gears (manual transmission): | 5 | |
| Length: | 5091 mm | 4330 mm |
| Width: | 1902 mm | 1630 mm |
| Height: | 1540 mm | 1400 mm |
| Wheelbase: | 3070 mm | 2510 mm |
| Front track: | 1615 mm | 1368 mm |
| Rear (Back) track: | 1647 mm | 1358 mm |
| Ride height(clearance): | 138 mm | 120 mm |
| Front overhang: | 825 mm | |
| Rear overhang: | 995 mm | |
| Minimum volume of Luggage (trunk): | 600 l | 500 l |
| Maximum amount of Luggage (trunk): | 1800 l | |
| Front suspension: | Double wishbone | |
| Rear suspension: | Multi-link independent | |
| Max weight: | 2685 kg | 1525 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 2010 kg | 1100 kg |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | |
| Max. roof load: | 75 kg | 80 kg |
| Minimum turning circle (turning diameter): | 12.5 m | 10.9 m |
| Permitted trailer load with brakes (12%): | 2100 kg | |
| Permitted trailer load without brakes: | 750 kg | |
| Permitted towbar download: | 100 kg | 60 kg |
| Tire size: | 245/50 R18 100Y | 195/60 R14 |
| Wheel rims size: | 8J x 18 | 6.5J x 14 |