The Mini Hatch (F66) 3-door Cooper C 1.5 (156 Hp) Steptronic represents the latest iteration of Mini’s iconic small car, launched in February 2024. This variant sits within the third generation of the F66 Hatch, building upon the success of the previous F56 generation. Positioned as a mid-range offering within the Cooper lineup, it bridges the gap between the base Cooper models and the more performance-focused John Cooper Works variants. The F66 generation represents a significant redesign, incorporating updated technology, styling cues, and powertrain options while retaining the core Mini driving experience. This specific configuration, pairing a 1.5-liter turbocharged three-cylinder engine with a 7-speed Steptronic automatic transmission, is aimed at buyers seeking a balance of efficiency, performance, and convenience.
Technical Specifications
| Brand | Mini |
| Model | Hatch |
| Generation | Hatch (F66) 3-door |
| Type (Engine) | Cooper C 1.5 (156 Hp) Steptronic |
| Start of production | February, 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 4 |
| Doors | 3 |
| Combined fuel consumption (WLTP) | 5.9-6.2 l/100 km (39.9 – 37.9 US mpg, 47.9 – 45.6 UK mpg, 16.9 – 16.1 km/l) |
| CO2 emissions (WLTP) | 133-137 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.7 sec |
| Acceleration 0 – 62 mph | 7.7 sec |
| Acceleration 0 – 60 mph | 7.3 sec |
| Maximum speed | 225 km/h (139.81 mph) |
| Emission standard | Euro 6e |
| Weight-to-power ratio | 8.6 kg/Hp, 116.9 Hp/tonne |
| Weight-to-torque ratio | 5.8 kg/Nm, 172.3 Nm/tonne |
| Power | 156 Hp |
| Power per litre | 104.1 Hp/l |
| Torque | 230 Nm (169.64 lb.-ft.) |
| Engine layout | Front, Transverse |
| Engine Model/Code | B38A15M2 |
| Engine displacement | 1499 cm3 (91.47 cu. in.) |
| Number of cylinders | 3 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine systems | Start & Stop System, Particulate filter |
| Kerb Weight | 1335 kg (2943.17 lbs.) |
| Trunk (boot) space – minimum | 210 l (7.42 cu. ft.) |
| Trunk (boot) space – maximum | 725 l (25.6 cu. ft.) |
| Length | 3876 mm (152.6 in.) |
| Width | 1744 mm (68.66 in.) |
| Height | 1432 mm (56.38 in.) |
| Wheelbase | 2495 mm (98.23 in.) |
| 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 | 7 gears, automatic transmission Steptronic |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Wheel rims size | 16; 17 |
Powertrain & Engine Architecture
At the heart of the Cooper C 1.5 Steptronic lies the BMW Group’s B38A15M2 engine – a 1.5-liter turbocharged three-cylinder gasoline engine. This engine is part of the modular B-series engine family, known for its efficiency and surprisingly robust power output. The B38 utilizes direct fuel injection, operating at pressures up to 350 bar, to ensure precise fuel delivery and optimized combustion. A single twin-scroll turbocharger, coupled with an intercooler, provides boost to overcome the inherent limitations of a small-displacement engine. The engine also incorporates variable valve timing (Valvetronic) and variable camshaft timing (Double VANOS) to further enhance efficiency and responsiveness. The 7-speed Steptronic automatic transmission is a torque-converter type, offering smooth and quick shifts. It features a wider gear spread than previous generations, contributing to both improved fuel economy and enhanced acceleration. The transmission is electronically controlled and adapts its shift patterns based on driving style and road conditions.
Driving Characteristics
The 156 hp and 230 Nm (169.64 lb-ft) of torque delivered by the Cooper C 1.5 Steptronic provide a lively and engaging driving experience. While not as overtly sporty as the John Cooper Works models, this variant offers ample power for everyday driving and spirited weekend excursions. The 0-60 mph time of around 7.3 seconds is respectable for a car in this class. The Steptronic transmission contributes to a relaxed driving experience, particularly in urban environments. Gear changes are generally seamless, and the transmission is quick to downshift when needed. Compared to the manual transmission option, the automatic offers slightly reduced fuel economy but greater convenience. The engine’s turbocharger does exhibit some lag at lower RPMs, but the power delivery becomes more linear and responsive as the engine revs climb. The front-wheel-drive configuration provides good traction in most conditions, although torque steer can be noticeable under hard acceleration.
Equipment & Trim Levels
The Cooper C 1.5 Steptronic comes standard with a comprehensive array of features. Interior appointments typically include cloth upholstery, a leather-wrapped steering wheel, and a modern dashboard layout with a centrally-mounted infotainment screen. Standard equipment often includes automatic climate control, a rearview camera, parking sensors, and a suite of driver-assistance systems such as lane departure warning and automatic emergency braking. Optional extras can include premium upholstery options (leather), a panoramic sunroof, a head-up display, and a more advanced infotainment system with navigation and Apple CarPlay/Android Auto integration. The exterior styling features Mini’s signature design elements, including a distinctive front grille, circular headlights, and a contrasting roof color option.
Chassis & Braking
The F66 Mini Hatch utilizes a front-wheel-drive platform with a MacPherson strut front suspension and a multi-link rear suspension. This setup provides a good balance of ride comfort and handling agility. The Cooper C 1.5 Steptronic typically features a slightly stiffer suspension setup compared to the base Cooper models, enhancing its cornering capabilities. Braking duties are handled by ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) and electronic brakeforce distribution (EBD) are standard features. The steering is electrically assisted, providing precise and responsive control. Wheel sizes typically range from 16 to 17 inches, depending on the trim level and optional packages.
Market Reception & Comparison
The Mini Hatch (F66) Cooper C 1.5 Steptronic has been generally well-received by automotive critics. Reviewers have praised its stylish design, engaging driving dynamics, and improved technology. The automatic transmission has been noted for its smoothness and responsiveness. Compared to other trims in the lineup, the Cooper C offers a compelling balance of performance and efficiency. The base Cooper models are more affordable but offer less power, while the John Cooper Works variants are significantly more expensive and focused on outright performance. Fuel economy figures of 5.9-6.2 l/100 km (39.9 – 37.9 US mpg) are competitive within its segment. Reliability reports are still emerging for the F66 generation, but the B38 engine has proven to be generally reliable in other BMW and Mini applications.
Legacy
The B38 engine, in its various iterations, has become a mainstay in the BMW Group’s product lineup. Its combination of efficiency, power, and refinement has made it a popular choice among consumers. The 7-speed Steptronic transmission is also a well-regarded unit, known for its durability and smooth operation. As the F66 generation Mini Hatch matures, the Cooper C 1.5 Steptronic is expected to hold its value reasonably well in the used car market, particularly among buyers seeking a stylish, well-equipped, and enjoyable-to-drive small car. Long-term reliability will be a key factor in its continued appeal, but early indications suggest that this powertrain combination is a solid and dependable choice.

