Comparison BMW 4 Series Coupe (F32, facelift 2017) 420i (184 Hp) Steptronic & Renault 21 Combi (K48) 2.1 TD (88 Hp)
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| Brand: | BMW | Renault |
| Model: | 4 Series | 21 |
| Generation: | 4 Series Coupe (F32, facelift 2017) | 21 Combi (K48) |
| Engine / modification: | 420i (184 Hp) Steptronic | 2.1 TD (88 Hp) |
| Production start: | 2017 year | 1989 year |
| Production end: | 2020 year | 1994 year |
| Coupe type: | Coupe | Combi |
| Num. of Doors: | 2 | 5 |
| Num. of seats: | 4 | 5 |
| Fuel consumption / economy - urban: | 7.1-7.6 l/100 km | 8.3 l/100 km |
| Fuel consumption / economy - extra urban: | 4.5-4.7 l/100 km | 5.3 l/100 km |
| Fuel consumption / economy - combined: | 5.5-5.8 l/100 km | 7.3 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.29 | |
| Fuel tank volume: | 60 l | 66 l |
| Emission standard: | Euro 6 | |
| CO2 emissions: | 127-134 g/km | |
| Power: | 184 hp | 88 hp |
| Max power in: | 5000 rpm. | 4250 rpm. |
| Maximum speed: | 236 km/h | 172 km/h |
| Acceleration from 0 to 100 km/h: | 7.5 sec | 12.5 sec |
| Torque: | 270 Nm @ 1350-4600 rpm. | 184 Nm @ 2000 rpm. |
| Model Engine: | B48B20 | J8S |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 1998 cm3 | 2068 cm3 |
| Engine oil capacity: | 5.25 l | 6.1 l |
| Coolant: | 7.2 l | |
| Fuel System: | Direct injection | Diesel - Standard diesel injection (SDI) |
| Aspiration / Turbine: | Twin-power turbo | Turbocharging |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | OHC | |
| Number of cylinders: | 4 | 4 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 11 | 21 |
| Piston Stroke: | 94.6 mm | 89 mm |
| Cylinder Bore: | 82 mm | 86 mm |
| Wheel Drive: | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | - |
| Number of Gears (manual transmission): | 5 | |
| Length: | 4640 mm | 4693 mm |
| Width: | 1825 mm | 1726 mm |
| Height: | 1377 mm | 1450 mm |
| Wheelbase: | 2810 mm | 2809 mm |
| Front track: | 1547 mm | 1454 mm |
| Rear (Back) track: | 1593 mm | 1408 mm |
| Ride height(clearance): | 130 mm | |
| Minimum volume of Luggage (trunk): | 445 l | 674 l |
| Maximum amount of Luggage (trunk): | 1694 l | |
| Front suspension: | Independent, spring | The depreciated rack |
| Rear suspension: | Multi-link independent | Torsion |
| Max weight: | 2015 kg | 1760 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Drum |
| Kerb Weight: | 1495 kg | 1195 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 | |
| Minimum turning circle (turning diameter): | 11.3 m | |
| Permitted trailer load with brakes (12%): | 1500 kg | |
| Permitted trailer load without brakes: | 695 kg | |
| Permitted towbar download: | 75 kg | |
| Tire size: | 225/50 R17; 225/45 R18; 255/40 R18; 225/40 R19; 255/35 R19 | 175/65 R14 |
| Wheel rims size: | 7.5J x 17; 8J x 18; 8.5J x 18; 8J x 19; 8.5J x 19 | R14 |