Comparison BMW X6 (F16) 50i (450 Hp) xDrive Steptronic & BMW 4 Series Coupe (F32, facelift 2017) 420i (184 Hp) & BMW 4 Series Coupe (F32) 440i (326 Hp)
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| Brand: | BMW | BMW | BMW |
| Model: | X6 | 4 Series | 4 Series |
| Generation: | X6 (F16) | 4 Series Coupe (F32, facelift 2017) | 4 Series Coupe (F32) |
| Engine / modification: | 50i (450 Hp) xDrive Steptronic | 420i (184 Hp) | 440i (326 Hp) |
| Production start: | 2014 year | 2017 year | 2016 year |
| Production end: | 2018 year | 2020 year | 2016 year |
| Coupe type: | SUV | Coupe | Coupe |
| Num. of Doors: | 5 | 2 | 2 |
| Num. of seats: | 5 | 4 | 4 |
| Fuel consumption / economy - urban: | 13.0-13.1 l/100 km | 7.7-8.1 l/100 km | 10.0-10.4 l/100 km |
| Fuel consumption / economy - extra urban: | 7.7-7.8 l/100 km | 4.7-4.9 l/100 km | 5.9-6.1 l/100 km |
| Fuel consumption / economy - combined: | 9.7 l/100 km | 5.8-6.1 l/100 km | 7.4-7.7 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.35 | 0.29 | 0.30 |
| Fuel tank volume: | 85 l | 60 l | 60 l |
| Emission standard: | Euro 6 | Euro 6 | EURO VI |
| CO2 emissions: | 225-227 g/km | 134-141 g/km | 172-179 g/km |
| Power: | 450 hp | 184 hp | 326 hp |
| Max power in: | 5500-6000 rpm. | 5000 rpm. | 5500 rpm. |
| Maximum speed: | 250 km/h | 236 km/h | 250 km/h |
| Acceleration from 0 to 100 km/h: | 4.8 sec | 7.3 sec | 5.2 sec |
| Torque: | 650 Nm @ 2000-4500 rpm. | 290 Nm @ 1350-4600 rpm. | 450 Nm @ 1380-5000 rpm. |
| Model Engine: | N63B44 | B48B20 | |
| Engine position: | Front, longitudinal | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 4395 cm3 | 1998 cm3 | 2998 cm3 |
| Engine oil capacity: | 9.5 l | 5.25 l | 6.5 l |
| Coolant: | 14.9 l | ||
| Fuel System: | Direct injection | Direct injection | Direct injection |
| Aspiration / Turbine: | Twin-power turbo | Twin-power turbo | Twin-power turbo |
| Position of cylinders: | V engine | Inline | Inline |
| Number of cylinders: | 8 | 4 | 6 |
| Number of valves per cylinder: | 4 | 4 | 4 |
| Compression ratio: | 10 | 11 | 11 |
| Piston Stroke: | 88.3 mm | 94.6 mm | 94.6 mm |
| Cylinder Bore: | 89 mm | 82 mm | 82 mm |
| Wheel Drive: | All wheel drive (4x4) | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | ||
| Number of Gears (manual transmission): | 6 | 6 | |
| Length: | 4909 mm | 4640 mm | 4638 mm |
| Width: | 1989 mm | 1825 mm | 1825 mm |
| Width including mirrors: | 2170 mm | ||
| Height: | 1702 mm | 1377 mm | 1377 mm |
| Wheelbase: | 2933 mm | 2810 mm | 2810 mm |
| Front track: | 1640 mm | 1547 mm | 1545 mm |
| Rear (Back) track: | 1706 mm | 1593 mm | 1594 mm |
| Ride height(clearance): | 212 mm | 130 mm | 130 mm |
| Approach angle: | 25 ° | ||
| Departure angle: | 22.5 ° | ||
| Ramp angle: | 20.0 ° | ||
| Front overhang: | 890 mm | ||
| Rear overhang: | 1086 mm | ||
| Wading depth: | 500 mm | ||
| Minimum volume of Luggage (trunk): | 550 l | 445 l | 445 l |
| Maximum amount of Luggage (trunk): | 1525 l | ||
| Front suspension: | Double wishbone | Independent, spring | Independent, spring |
| Rear suspension: | Multi-link independent | Multi-link independent | Multi-link independent |
| Max weight: | 2885 kg | 1995 kg | 2060 kg |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Kerb Weight: | 2170 kg | 1475 kg | 1540 kg |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering | |
| Max. roof load: | 100 kg | 75 kg | 75 kg |
| Minimum turning circle (turning diameter): | 12.8 m | 11.3 m | 11.3 m |
| Permitted trailer load with brakes (12%): | 2700 kg | 1400 kg | 1700 kg |
| Permitted trailer load without brakes: | 750 kg | 695 kg | 750 kg |
| Permitted towbar download: | 140 kg | 75 kg | 75 kg |
| Tire size: | 255/50 R19; 285/45 R19; 275/40 R20; 315/35 R20 | 225/50 R17; 225/45 R18; 255/40 R18; 225/40 R19; 255/35 R19 | 225/50 R17 94W; 225/45 R18; 255/40 R18; 225/40 R19; 255/35 R19 |
| Wheel rims size: | 9J x 19; 10J x 19; 10J x 20; 11J x 20 | 7.5J x 17; 8J x 18; 8.5J x 18; 8J x 19; 8.5J x 19 | 7.5J x 17; 8J x 18; 8.5J x 18; 8J x 19; 8.5J x 19 |