The first-generation MINI One under BMW's era (codename R50 for the 3-door hatchback, R52 for the convertible introduced in 2004) marks the rebirth of the legendary model. Positioned as the entry-level model below the Cooper, the One shares the same 1.6L petrol engine block (electronically detuned to 90 hp) from the Tritec joint venture (BMW/Chrysler). It stands out for its exceptional road handling, often compared to a go-kart, and its very successful neo-retro design. However, the first years of production suffered from serious early defects, particularly concerning the transmission and power steering, largely corrected during the July 2004 facelift.
The MINI One R50 is a car you fall in love with, but it can turn into a financial nightmare if poorly chosen. The golden rule is to absolutely avoid petrol models from before July 2004 equipped with the Midland manual gearbox, as well as all versions with a CVT automatic gearbox. Opt for a facelifted petrol model (late 2004-2006) with the Getrag gearbox, or turn to the One D (Toyota diesel), which is by far the most reliable version of this generation, although less sporty.