Comparison BMW 6 Series Gran Turismo (G32 LCI, facelift 2020) 620d (190 Hp) MHEV Steptronic & BMW 7 Series (E23) 730 (184 Hp) Automatic
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| Brand: | BMW | BMW |
| Model: | 6 Series | 7 Series |
| Generation: | 6 Series Gran Turismo (G32 LCI, facelift 2020) | 7 Series (E23) |
| Engine / modification: | 620d (190 Hp) MHEV Steptronic | 730 (184 Hp) Automatic |
| Production start: | 2020 year | 1977 year |
| Production end: | 1979 year | |
| Coupe type: | Sedan | |
| Num. of Doors: | 5 | 4 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 5.0-5.1 l/100 km | |
| Fuel consumption / economy - extra urban: | 4.1-4.2 l/100 km | |
| Fuel consumption / economy - combined: | 4.4-4.6 l/100 km | |
| Fuel Type: | Diesel | Petrol (Gasoline) |
| Drag coefficient: | 0.25 | |
| Fuel tank volume: | 66 l | 90 l |
| Emission standard: | EURO 6d | |
| CO2 emissions: | 116-120 g/km | |
| Power: | 190 hp | 184 hp |
| Max power in: | 4000 rpm. | 5500 rpm. |
| Maximum speed: | 220 km/h | 194 km/h |
| Acceleration from 0 to 100 km/h: | 7.9 sec | 11.3 sec |
| Torque: | 400 Nm @ 1750-2500 rpm. | 255 Nm @ 3500 rpm. |
| Model Engine: | M30B30 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 1995 cm3 | 2985 cm3 |
| Engine oil capacity: | 5.5 l | 5.8 l |
| Fuel System: | Diesel Commonrail | Multi-point injection |
| Aspiration / Turbine: | Twin-power turbo | |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | SOHC | |
| Number of cylinders: | 4 | 6 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 16.5 | 9 |
| Piston Stroke: | 90 mm | 80 mm |
| Cylinder Bore: | 84 mm | 89 mm |
| Electric motor power: | 11 | |
| Battery capacity: | 0.528 kWh | |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | 3 |
| Length: | 5091 mm | 4860 mm |
| Width: | 1902 mm | 1800 mm |
| Height: | 1538 mm | 1430 mm |
| Wheelbase: | 3070 mm | 2795 mm |
| Front track: | 1615 mm | 1502 mm |
| Rear (Back) track: | 1647 mm | 1524 mm |
| Ride height(clearance): | 138 mm | 132 mm |
| Minimum volume of Luggage (trunk): | 600 l | |
| Maximum amount of Luggage (trunk): | 1800 l | |
| Front suspension: | Double wishbone | Independent, Spring McPherson, with stabilizer |
| Rear suspension: | Multi-link independent | Multi-link independent |
| Max weight: | 2490 kg | 2050 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 1835 kg | 1600 kg |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | |
| Max. roof load: | 75 kg | |
| Minimum turning circle (turning diameter): | 12.3 m | |
| Permitted trailer load with brakes (12%): | 2100 kg | |
| Permitted trailer load without brakes: | 750 kg | |
| Permitted towbar download: | 100 kg | |
| Tire size: | 225/60 R17 99Y | 205/70 HR14; 220/55 HR390 TRX |
| Wheel rims size: | 7.5J x 17 | 6.5 J x 14; 165 TR 390 |