The Mini Convertible (R57) facelift, produced from 2012 to 2015, represented a mid-cycle refresh of the first-generation modern Mini Convertible. The “One 1.6” variant, equipped with a 98 horsepower 1.6-liter engine and a six-speed automatic transmission, served as the entry point into the Convertible range. Positioned below the Cooper and Cooper S models, it aimed to offer the open-air Mini experience to a broader audience prioritizing affordability and ease of use over outright performance. This model was primarily sold in the European market, with limited availability in North America, where the Cooper and Cooper S were more popular.
Technical Specifications
| Brand | Mini |
| Model | Convertible |
| Generation | Convertible (R57, Facelift 2011) |
| Type (Engine) | One 1.6 (98 Hp) |
| Start of production | 2012 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 7.6 l/100 km (30.9 US mpg) |
| Fuel consumption (extra urban) | 4.6 l/100 km (51.1 US mpg) |
| Fuel consumption (combined) | 5.7 l/100 km (41.3 US mpg) |
| CO2 emissions | 133 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 11.3 sec |
| Acceleration 0 – 62 mph | 11.3 sec |
| Acceleration 0 – 60 mph | 10.7 sec |
| Maximum speed | 181 km/h (112.47 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 11.8 kg/Hp |
| Weight-to-torque ratio | 7.6 kg/Nm |
| Power | 98 Hp @ 6000 rpm |
| Torque | 153 Nm @ 3000 rpm (112.85 lb.-ft. @ 3000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | N16B16A |
| Engine displacement | 1598 cm3 (97.52 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 77 mm (3.03 in.) |
| Piston Stroke | 85.8 mm (3.38 in.) |
| Compression ratio | 11:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 4.2 l (4.44 US qt | 3.7 UK qt) |
| Coolant capacity | 5.5 l (5.81 US qt | 4.84 UK qt) |
| Kerb Weight | 1160 kg (2557.36 lbs.) |
| Max. weight | 1590 kg (3505.35 lbs.) |
| Max load | 430 kg (947.99 lbs.) |
| Trunk (boot) space – minimum | 125 l (4.41 cu. ft.) |
| Trunk (boot) space – maximum | 660 l (23.31 cu. ft.) |
| Fuel tank capacity | 40 l (10.57 US gal | 8.8 UK gal) |
| Length | 3723 mm (146.57 in.) |
| Width | 1683 mm (66.26 in.) |
| Height | 1414 mm (55.67 in.) |
| Wheelbase | 2467 mm (97.13 in.) |
| Front track | 1459 mm (57.44 in.) |
| Rear track | 1467 mm (57.76 in.) |
| Ride height (ground clearance) | 139 mm (5.47 in.) |
| Minimum turning circle | 10.7 m (35.1 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 6 |
| Gearbox type | Automatic transmission |
| Front suspension | Independent, 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 |
| Tires size | 175/65 R15 84H |
| Wheel rims size | 5.5J x 15 |
Powertrain & Engine Architecture
The heart of the One 1.6 Convertible was the N16B16A engine, a 1.6-liter naturally aspirated inline-four cylinder. This engine was part of BMW’s (who owned Mini at the time) N16 engine family. It featured a single overhead camshaft (SOHC) valvetrain with four valves per cylinder. Fuel delivery was handled by a multi-port fuel injection system. The engine’s 98 horsepower output was modest, but it was designed for fuel efficiency and smooth operation rather than outright speed. The six-speed automatic transmission, a common unit in other BMW and Mini models of the era, was tuned for comfort and ease of driving. It lacked the sportiness of the available six-speed manual, with slightly slower shift times and a focus on smooth transitions.
Driving Characteristics
The 1.6-liter engine and automatic transmission combination resulted in a relaxed driving experience. Acceleration was adequate for city driving and highway merging, but it wasn’t particularly brisk. The 0-60 mph time of around 10.7 seconds reflects this. The automatic transmission’s gear ratios were optimized for fuel economy, meaning the engine often felt strained during hard acceleration. Compared to the more powerful Cooper and Cooper S models, the One 1.6 felt noticeably slower. However, the automatic transmission made it a more accessible option for drivers who preferred not to deal with a manual gearbox, especially in congested urban environments. The steering, a hallmark of the Mini brand, remained precise and responsive, providing a sense of agility despite the modest power output.
Equipment & Trim Levels
The One 1.6 Convertible typically came with a relatively basic level of equipment. Standard features included air conditioning, power windows, central locking, and a basic audio system. The interior upholstery was usually cloth, with options for upgraded leather seats. The dashboard layout was typical of the R57 Mini, with a large central speedometer and a smaller tachometer. Optional extras included a sunroof, upgraded audio systems, navigation, and various cosmetic enhancements. The convertible top was a fully automatic fabric roof, available in a range of colors.
Chassis & Braking
The R57 Mini Convertible utilized a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable and controlled ride. The One 1.6 variant typically featured smaller wheels and tires (often 15-inch) compared to the Cooper and Cooper S models. The braking system consisted of ventilated discs at the front and solid discs at the rear. Anti-lock brakes (ABS) were standard. Due to the lower weight of the One 1.6 compared to its more powerful siblings, the braking performance was adequate for its intended use.
Market Reception & Comparison
The One 1.6 Convertible was generally well-received as an affordable entry point into the Mini Convertible range. Critics praised its fuel efficiency and ease of driving, but noted its lack of performance compared to the Cooper and Cooper S models. Fuel economy figures of around 41.3 US mpg combined were competitive for its class. Reliability was generally good, although some owners reported minor issues with the automatic transmission. Compared to the Cooper, the One 1.6 offered a lower purchase price but significantly less power and a less engaging driving experience. The Cooper S provided a substantial performance upgrade but came at a higher cost.
Legacy
The Mini Convertible One 1.6 (R57) remains a relatively affordable and accessible option in the used car market. The N16B16A engine is known for its reliability, provided it has been properly maintained. While not a performance car, it offers a stylish and fun driving experience, particularly for those who prioritize comfort and fuel efficiency. The automatic transmission, while not sporty, is generally dependable. These cars are increasingly sought after by Mini enthusiasts looking for a classic open-top experience at a reasonable price. Regular maintenance, including oil changes and coolant flushes, is crucial to ensure the long-term reliability of this powertrain.
