The Mini Convertible Cooper S 2.0 (192 Hp) Steptronic, part of the F57 facelift generation produced in 2018, represents a compelling blend of performance and open-air motoring within the Mini lineup. Introduced as part of the mid-cycle refresh for the F57 series, this variant aimed to enhance the driving experience while maintaining the iconic Mini aesthetic. Positioned as a mid-range offering, it sat above the base Cooper models and below the more performance-focused John Cooper Works (JCW) trim. The F57 generation, built on the UKL1 platform shared with other BMW Group vehicles, brought increased size and refinement compared to its predecessor, the R57.
Technical Specifications
| Brand | Mini |
| Model | Convertible |
| Generation | Convertible (F57, facelift 2018) |
| Type (Engine) | Cooper S 2.0 (192 Hp) Steptronic |
| Start of production | 2018 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 7.1-7.2 l/100 km (33.1 – 32.7 US mpg, 39.8 – 39.2 UK mpg, 14.1 – 13.9 km/l) |
| Fuel consumption (extra urban) | 4.8-5.0 l/100 km (49 – 47 US mpg, 58.9 – 56.5 UK mpg, 20.8 – 20 km/l) |
| Fuel consumption (combined) | 5.6-5.8 l/100 km (42 – 40.6 US mpg, 50.4 – 48.7 UK mpg, 17.9 – 17.2 km/l) |
| CO2 emissions | 131-134 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.1 sec |
| Acceleration 0 – 62 mph | 7.1 sec |
| Acceleration 0 – 60 mph | 6.7 sec |
| Maximum speed | 228 km/h (141.67 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 6.7 kg/Hp, 148.3 Hp/tonne |
| Weight-to-torque ratio | 4.3 kg/Nm, 231.7 Nm/tonne |
| Power | 192 Hp @ 5000-6000 rpm |
| Power per litre | 96.1 Hp/l |
| Torque | 300 Nm @ 1250-4600 rpm (221.27 lb.-ft. @ 1250-4600 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | B48A20F |
| Engine displacement | 1998 cm3 (121.93 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 11:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine oil capacity | 5.3 l (5.6 US qt | 4.66 UK qt) |
| Coolant | 6.9 l (7.29 US qt | 6.07 UK qt) |
| Kerb Weight | 1295 kg (2854.99 lbs.) |
| Max. weight | 1765 kg (3891.16 lbs.) |
| Max load | 470 kg (1036.17 lbs.) |
| Trunk (boot) space – minimum | 160 l (5.65 cu. ft.) |
| Trunk (boot) space – maximum | 215 l (7.59 cu. ft.) |
| Fuel tank capacity | 44 l (11.62 US gal | 9.68 UK gal) |
| Length | 3850 mm (151.57 in.) |
| Width | 1727 mm (67.99 in.) |
| Height | 1415 mm (55.71 in.) |
| Wheelbase | 2495 mm (98.23 in.) |
| Front track | 1485 mm (58.46 in.) |
| Rear (Back) track | 1485 mm (58.46 in.) |
| Ride height (ground clearance) | 115 mm (4.53 in.) |
| Drag coefficient (Cd) | 0.36 |
| Minimum turning circle (turning diameter) | 10.8 m (35.43 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission Steptronic |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 195/55 R16 87W |
| Wheel rims size | 6.5J x 16 |
Powertrain & Engine Architecture
At the heart of the Cooper S 2.0 Steptronic lies the BMW B48A20F 2.0-liter inline-four cylinder engine. This engine is a member of BMW’s modular engine family, known for its efficiency and performance. It utilizes direct fuel injection, a twin-scroll turbocharger, and variable valve timing (VANOS) and valve lift (Valvetronic) technologies to optimize power delivery and fuel economy. The engine produces 192 horsepower at 5000-6000 rpm and 300 Nm (221 lb-ft) of torque between 1250 and 4600 rpm. The Steptronic transmission is a 6-speed automatic gearbox, offering smooth shifts and a torque converter for enhanced drivability. This transmission is programmed for both efficiency and responsiveness, adapting to driving conditions and driver input.
Driving Characteristics
The 192 hp and 300 Nm of torque provide brisk acceleration, with a 0-60 mph time of around 6.7 seconds. While not as overtly sporty as the JCW model, the Cooper S 2.0 Steptronic delivers a satisfying driving experience. The automatic transmission, while convenient, does slightly diminish the sense of control compared to the available manual gearbox. Gear ratios are tuned for a balance between acceleration and fuel efficiency. In real-world driving, the engine feels responsive, with ample torque available from low revs, making it well-suited for everyday commuting and spirited drives alike. The front-wheel-drive configuration provides predictable handling, although traction can be limited under hard acceleration.
Equipment & Trim Levels
The Cooper S 2.0 Steptronic came standard with a generous array of features, including automatic climate control, a 6.5-inch infotainment system with Bluetooth connectivity, and a leather-wrapped steering wheel. Upholstery typically consisted of cloth or part-leather seats. Optional extras included a larger touchscreen display, navigation system, Harman Kardon premium audio system, and various styling packages. The convertible top was fully automatic and could be operated at speeds up to 30 mph. Safety features included multiple airbags, ABS, and stability control.
Chassis & Braking
The F57 Convertible utilizes a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable yet controlled ride. The suspension is tuned to balance handling and comfort, making it suitable for a variety of road conditions. Braking duties are handled by ventilated discs at the front and solid discs at the rear. ABS (Anti-lock Braking System) is standard, enhancing braking performance and stability. The chassis was reinforced compared to the previous generation to improve rigidity and handling, compensating for the loss of a fixed roof.
Market Reception & Comparison
Critics generally praised the Cooper S 2.0 Steptronic for its blend of performance, style, and practicality. The automatic transmission was seen as a convenient option for urban driving, although some reviewers preferred the engagement of the manual gearbox. Fuel economy was considered respectable for a performance-oriented convertible, averaging around 40-42 mpg in combined driving. Compared to the base Cooper models, the Cooper S offered a significant performance upgrade. Against the JCW variant, it provided a more accessible price point with a slightly less aggressive driving experience.
Legacy
The B48 engine family has proven to be relatively reliable, although some owners have reported issues with the timing chain and oil leaks. The Steptronic transmission is generally durable, but regular maintenance is crucial to ensure smooth operation. On the used car market, the 2018 Mini Convertible Cooper S 2.0 Steptronic holds its value reasonably well, appealing to buyers seeking a stylish and fun-to-drive convertible. Its combination of performance, features, and the iconic Mini brand continues to make it a desirable option for enthusiasts.
