The Mini Convertible (R57) Cooper 1.6i 16V, producing 120 horsepower, was a popular iteration of the second-generation Mini Convertible, manufactured between March 2009 and February 2010. Positioned as an entry-level offering within the R57 range, it provided an accessible entry point into the Mini convertible experience, appealing to buyers prioritizing style and fuel efficiency over outright performance. This model sat below the Cooper S and John Cooper Works variants, offering a more economical and relaxed driving experience. It was built on the 1HX0/A3 platform, shared with the first generation BMW Mini.
Technical Specifications
| Brand | Mini |
| Model | Convertible |
| Generation | Convertible (R57) |
| Type (Engine) | Cooper 1.6i 16V (120 Hp) |
| Start of production | March, 2009 |
| End of production | February, 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 7.4 l/100 km (31.8 US mpg) |
| Fuel consumption (extra urban) | 4.7 l/100 km (50 US mpg) |
| Fuel consumption (combined) | 5.7 l/100 km (41.3 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.8 sec |
| Acceleration 0 – 62 mph | 9.8 sec |
| Acceleration 0 – 60 mph | 9.3 sec |
| Maximum speed | 198 km/h (123.03 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 10.3 kg/Hp |
| Weight-to-torque ratio | 7.8 kg/Nm |
| Power | 120 Hp @ 6000 rpm |
| Torque | 160 Nm @ 4250 rpm (118.01 lb.-ft. @ 4250 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 |
| Valvetrain | DOHC |
| 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 | 1240 kg (2733.73 lbs.) |
| Max. weight | 1595 kg (3516.37 lbs.) |
| Max load | 355 kg (782.64 lbs.) |
| Trunk (boot) space – minimum | 170 l (6 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 | 3699 mm (145.63 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.) |
| Minimum turning circle | 10.7 m (35.1 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 6 gears, manual transmission |
| Front suspension | Spring Strut |
| Rear suspension | Transverse stabilizer |
| 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 H |
| Wheel rims size | 5.5J X 15 |
Powertrain & Engine Architecture
The heart of the Cooper 1.6i 16V was the N16B16A engine, a 1.6-liter naturally aspirated inline-four cylinder. This engine was part of the BMW/PSA Prince engine family, known for its compact design and efficiency. It featured a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, contributing to its relatively high output for its displacement. Fuel delivery was handled by a multi-port fuel injection system. The engine’s 120 horsepower and 118 lb-ft of torque were respectable for the time, but significantly less than the Cooper S models which utilized a turbocharged engine. The R57 Cooper 1.6i 16V was exclusively offered with a 6-speed manual transmission in the US market. This transmission was chosen for its smooth shifting and relatively lightweight design, contributing to the car’s overall agility.
Driving Characteristics
The 1.6-liter engine, paired with the 6-speed manual, provided a balanced driving experience. Acceleration from 0-60 mph took approximately 9.3 seconds, making it adequate for everyday driving but not particularly sporty. The engine felt responsive at higher RPMs, but lacked the low-end torque of larger displacement engines or those equipped with turbocharging. The gear ratios were well-matched, allowing the driver to keep the engine in its optimal power band. Compared to the Cooper S, the 1.6i felt less urgent and required more effort to maintain speed, especially when overtaking. However, this also translated to better fuel economy and a more relaxed driving experience.
Equipment & Trim Levels
The Cooper 1.6i 16V came standard with features such as air conditioning, power windows, power locks, and a basic audio system. Interior upholstery was typically cloth, with options for leatherette or full leather available at an extra cost. Common optional extras included a sunroof, upgraded audio systems (often from Harman Kardon), and various cosmetic enhancements. The dashboard layout was typical of the R57 Mini, featuring a large central speedometer and a smaller tachometer. The overall interior design emphasized style and retro-inspired aesthetics.
Chassis & Braking
The R57 Mini Convertible utilized a MacPherson strut front suspension and a multi-link rear suspension, providing a comfortable and controlled ride. The front brakes were ventilated discs, while the rear brakes were solid discs. Anti-lock Braking System (ABS) was standard. The chassis was reinforced to compensate for the lack of a fixed roof, maintaining a reasonable level of structural rigidity. The suspension tuning was geared towards comfort and handling balance, rather than outright performance. Stabilizer bars were fitted front and rear to reduce body roll during cornering.
Market Reception & Comparison
The Mini Convertible Cooper 1.6i 16V was generally well-received by critics as an affordable and stylish entry point into the Mini convertible range. Its fuel economy was a significant selling point, particularly in Europe where fuel prices were higher. However, some reviewers noted that the engine lacked the punch of the Cooper S models. Compared to other small convertibles on the market, the Mini offered a unique blend of style, handling, and brand appeal. Reliability was generally good, although some owners reported minor issues with the electrical system.
Legacy
The N16B16A engine, while not known for being exceptionally powerful, proved to be a relatively reliable unit when properly maintained. Today, the R57 Cooper 1.6i 16V can be found on the used car market at relatively affordable prices. Its combination of style, fuel efficiency, and relatively low maintenance costs makes it an attractive option for buyers seeking a fun and practical convertible. Parts availability is generally good, and the Mini’s strong brand following ensures continued support from aftermarket suppliers. While not a performance icon, the 1.6i variant remains a popular and enjoyable way to experience the open-air fun of a Mini Convertible.
