| General | |
| Body type | Cabriolet |
| Brand | BMW |
| Doors | 2 |
| End of production | 2015 |
| Generation | 4 Series Convertible (F33) |
| Model | 4 Series |
| Modification (Engine) | 420d (184 Hp) Steptronic |
| Powertrain Architecture | Internal Combustion engine |
| Seats | 4 |
| Start of production | 2014 |
| Performance | |
| Acceleration 0 - 100 km/h | 8.2 sec |
| Acceleration 0 - 60 mph | 7.8 sec |
| Acceleration 0 - 62 mph | 8.2 sec |
| CO2 emissions | 127 g/km |
| Emission standard | Euro 6 |
| Fuel Type | Diesel |
| Fuel consumption (economy) - combined | 4.8 l/100 km |
| Fuel consumption (economy) - extra urban | 4.3 l/100 km |
| Fuel consumption (economy) - urban | 5.7 l/100 km |
| Maximum speed | 228 km/h |
| Dimensions | |
| Drag coefficient (Cd) | 0.28 |
| 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 | 16.5 |
| Cylinder Bore | 84 mm |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine displacement | 1995 cm |
| Engine oil capacity | 5.2 l |
| Engine systems | Particulate filter |
| Fuel System | Diesel Commonrail |
| Model Engine | N47D20 |
| Number of cylinders | 4 |
| Number of valves per cylinder | 4 |
| Position of cylinders | Inline |
| Power | 184 Hp @ 4000 rpm. |
| Torque | 380 Nm @ 1750-2750 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 |
| Wheel rims size | 7.5J x 17 |
| Space | |
| Fuel tank capacity | 57 l |
| Kerb Weight | 1690 kg |
| Max load | 470 kg |
| Max. weight | 2160 kg |
| Permitted towbar download | 75 kg |
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