| General | |
| Body type | Cabriolet |
| Brand | BMW |
| Doors | 2 |
| End of production | 2016 |
| Generation | 4 Series Convertible (F33) |
| Model | 4 Series |
| Modification (Engine) | 420i (184 Hp) Steptronic |
| Powertrain Architecture | Internal Combustion engine |
| Seats | 4 |
| Start of production | 2016 |
| Performance | |
| Acceleration 0 - 100 km/h | 8.4 sec |
| Acceleration 0 - 60 mph | 8 sec |
| Acceleration 0 - 62 mph | 8.4 sec |
| CO2 emissions | 136-144 g/km |
| Emission standard | Euro 6 |
| Fuel Type | Petrol (Gasoline) |
| Fuel consumption (economy) - combined | 5.8-6.2 l/100 km |
| Fuel consumption (economy) - extra urban | 4.8-5.1 l/100 km |
| Fuel consumption (economy) - urban | 7.6-8.1 l/100 km |
| Maximum speed | 230 km/h |
| Dimensions | |
| Drag coefficient (Cd) | 0.30 |
| Front track | 1545 mm |
| Height | 1384 mm |
| Length | 4638 mm |
| Minimum turning circle (turning diameter) | 11.3 m |
| Rear (Back) track | 1594 mm |
| Ride height | 130 mm |
| Wheelbase | 2810 mm |
| Width | 1825 mm |
| Engine | |
| Compression ratio | 11 |
| Coolant | 7.8-9.3 l |
| Cylinder Bore | 82 mm |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine displacement | 1998 cm |
| Engine oil capacity | 5.25 l |
| Fuel System | Direct injection |
| Model Engine | B48B20 |
| Number of cylinders | 4 |
| Number of valves per cylinder | 4 |
| Position of cylinders | Inline |
| Power | 184 Hp @ 5000 rpm. |
| Torque | 270 Nm @ 1350-4600 rpm. |
| Drivetrain | |
| Drive wheel | Rear wheel drive |
| Front brakes | Ventilated discs |
| Front suspension | Independent, spring |
| Number of Gears (automatic transmission) | 8 Steptronic |
| Power steering | Electric Steering |
| Rear brakes | Ventilated discs |
| Rear suspension | Multi-link independent |
| Steering type | Steering rack and pinion |
| Tires size | 225/50 R17 94W; 225/45 R18; 255/40 R18; 225/40 R19; 255/35 R19 |
| Wheel rims size | 7.5J x 17; 8J x 18; 8.5J x 18; 8J x 19; 8.5J x 19 |
| Space | |
| Fuel tank capacity | 60 l |
| Kerb Weight | 1715 kg |
| Max load | 470 kg |
| Max. weight | 2185 kg |
| Permitted towbar download | 75 kg |
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