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BMW 4 Series Convertible (F33) 428i (245 Hp) Steptronic
Overall Rating
BMW 4 Series:
The BMW 4 Series is a range of compact executive cars manufactured by BMW since 2013. The 4 Series was created when BMW spun off the 2-door models of the 3 Series into a separate series. The 4 Series is currently in its second generation.
The original 4 Series concept car was unveiled in January 2013 at the North American International Auto Show in Detroit, Michigan. Both generations have been produced in the coupé, convertible and 5-door liftback body styles. The 4 series body style is very similar to that of the all electric BMW i4....(Read more on Wikipedia)
Convertible (F33) Overview:
BMW 4 Series (Convertible (F33)). With 350 Nm of torque, it offers ample pulling power. It has moderate fuel consumption (~8.6 l/100km). With a weight of 1700 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is good (0–100 km/h in 6.4 s). The top speed reaches 250 km/h. A convertible car with a retractable roof, offering open-air driving experiences. Seating for 4 makes it ideal for daily use.
428i (245 Hp) Steptronic Verdict:
Performance Verdict
Lively and agile, providing solid performance for daily driving and occasional spirited runs.
Fuel Economy
Good fuel efficiency for a petrol engine of this power output.
Pros and Cons:
Pros:
- • Stylish and elegant design with hardtop convertible versatility
- • Wide range of powerful and efficient engine options
- • Engaging driving dynamics and precise steering
- • Premium interior quality and advanced technology features
- • Good blend of sportiness and luxury
Cons:
- • Higher price point compared to rivals
- • Firm ride quality, especially with larger wheels
- • Limited rear seat space, typical for a 2+2 convertible
- • Reduced boot space with the roof down
- • Potential for higher running and maintenance costs
Specifications:
Specifications are compared to those of the previous generation(Coupe (F32): 2013 - 2016).
| General: | |
|---|---|
| Brand: | BMW |
| Model: | 4 Series |
| Generation: | Convertible (F33) |
| Modification (Engine): | 428i (245 Hp) Steptronic |
| Start of production: | 2014 |
| End of production: | 2016 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Cabriolet |
| Seats: | 4 |
| Doors: | 2 |
| Engine: | |
|---|---|
| Power: | 245 Hp @ 5000-6500 rpm. Same horsepower |
| Power per litre: | 122.7 Hp/l [Same length.] |
| Torque: | 350 Nm @ 1250-4800 rpm. |
| Engine Model/Code: | N20B20A More details about the engine N20B20A |
| Engine displacement: | 1997 |
| Number of cylinders: | 4 |
| Engine configuration: | Inline |
| Number of valves per cylinder: | 4 |
| Fuel injection system: | Direct injection |
| Engine aspiration: | Twin-power turbo, Intercooler |
| Engine oil capacity: | 5 l |
| Coolant: | 9.1 l |
| Engine layout: | Front, Longitudinal |
| Cylinder Bore: | 84 mm |
| Piston Stroke: | 90.1 mm |
| Compression ratio: | 10:1 |
| Performance: | |
|---|---|
| Fuel Type: | Petrol (Gasoline) |
| Fuel consumption (economy) - urban: | 8.6 l/100 km |
| Fuel consumption (economy) - extra urban: | 5.5 l/100 km |
| Fuel consumption (economy) - combined: | 6.6 l/100 km |
| Emission standard: | Euro 6 |
| Acceleration 0 - 100 km/h: | 6.4 sec |
| Acceleration 0 - 62 mph: | 6.4 sec |
| Maximum speed: | 250 km/h |
| Weight-to-power ratio: | 6.9 kg/Hp, 144.1 Hp/tonne |
| Weight-to-torque ratio: | 4.9 kg/Nm, 205.9 Nm/tonne |
| Acceleration 0 - 60 mph: | 6.1 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1700 |
| Max. weight: | 2160 |
| Max load: | 460 |
| Trunk (boot) space - maximum: | 370 l |
| Trunk (boot) space - minimum: | 220 l |
| Permitted trailer load with brakes (12%): | 1600 kg |
| Fuel tank capacity: | 60 l |
| Permitted trailer load without brakes: | 745 kg |
| Permitted towbar download: | 75 kg |
| Size: | |
|---|---|
| Length: | 4638 mm [Same length.] |
| Width: | 1825 mm [Same width.] |
| Height: | 1384 mm [7mm more] |
| Wheelbase: | 2810 mm [Same wheelbase.] |
| Front track: | 1545 mm |
| Rear (Back) track: | 1594 mm |
| Ride height (ground clearance): | 130 mm |
| Minimum turning circle (turning diameter): | 11.3 m [above average] |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears | 8 |
| Transmission type | Automatic |
| Gearbox type | Steptronic |
| Front brakes | Ventilated discs [Best for performance and cooling.] |
| Rear brakes | Ventilated discs [Best for performance and cooling.] |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/50 R17 94W |
| Wheel rims size | 7.5J x 17 |
| Front suspension | Independent coil spring |
| Rear suspension | Independent multi-link suspension |
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