Comparison BMW X4 M (F98, facelift 2021) Competition 3.0 (510 Hp) M xDrive M Steptronic & Alfa Romeo 147 (facelift 2004) 3-doors 2.0 (150 Hp) Automatic
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| Brand: | BMW | Alfa Romeo |
| Model: | X4 M | 147 |
| Generation: | X4 M (F98, facelift 2021) | 147 (facelift 2004) 3-doors |
| Engine / modification: | Competition 3.0 (510 Hp) M xDrive M Steptronic | 2.0 (150 Hp) Automatic |
| Production start: | 2021 year | 2004 year |
| Production end: | 2010 year | |
| Coupe type: | Hatchback | |
| Num. of Doors: | 5 | 3 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 12.1 l/100 km | |
| Fuel consumption / economy - extra urban: | 7.0 l/100 km | |
| Fuel consumption / economy - combined: | 8.9 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.36-0.37 | |
| Fuel tank volume: | 65 l | 60 l |
| Emission standard: | Euro 6d | |
| Power: | 510 hp | 150 hp |
| Max power in: | 6250 rpm. | 6300 rpm. |
| Maximum speed: | 250 , Electronically limited km/h | 208 km/h |
| Acceleration from 0 to 100 km/h: | 3.8 sec | 9.3 sec |
| CO2 emissions (WLTP): | 243-247 g/km | |
| Torque: | 650 Nm @ 2750-5500 rpm. | 181 Nm/3800 rpm. |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 2993 cm3 | 1970 cm3 |
| Engine oil capacity: | 7 l | |
| Fuel System: | Direct injection | Multi-point injection |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | VALVETRONIC, Double VANOS | |
| Number of cylinders: | 6 | 4 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 9.3 | 10 |
| Piston Stroke: | 90 mm | 91 mm |
| Cylinder Bore: | 84 mm | 83 mm |
| Wheel Drive: | All wheel drive (4x4) | Front wheel drive |
| Number of Gears (automatic transmission): | 8 M Steptronic | 5 |
| Length: | 4754 mm | 4223 mm |
| Width: | 1927 mm | 1729 mm |
| Height: | 1620 mm | 1442 mm |
| Wheelbase: | 2864 mm | 2546 mm |
| Front track: | 1617 mm | 1518 mm |
| Rear (Back) track: | 1632 mm | 1502 mm |
| Ride height(clearance): | 120 mm | |
| Minimum volume of Luggage (trunk): | 525 l | 292 l |
| Maximum amount of Luggage (trunk): | 1430 l | 1042 l |
| Rear suspension: | Independent multi-link | |
| Max weight: | 2500 kg | 1770 kg |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Ventilated discs | |
| Kerb Weight: | 2010 kg | 1275 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | |
| Max. roof load: | 100 kg | |
| Minimum turning circle (turning diameter): | 12.6 m | |
| Permitted trailer load with brakes (12%): | 2400 kg | |
| Permitted trailer load without brakes: | 750 kg | |
| Permitted towbar download: | 100 kg | |
| Tire size: | Front wheel tires: 255/40 R21 | 215/45 R17 |
| Wheel rims size: | Front wheel rims: 9.5J x 21 | R17 |