The first new generation Mini Hatch was introduced in July 2001,[14] being the first model launched under the Mini marque after the original Mini was discontinued the year before. In some European markets, the Mini One was powered by a 1.4-litre (85 cu in) inline-four version of the Tritec engine,[15]but all other petrol powered Minis used the 1.6-litre (98 cu in) version.[16][17] From 2004 to 2008, the soft-top convertible R52 was made.

Though still considered very compact, the 2001 hatchback's 3.63 m (143 in) length was 58 cm (22.8 in), or 19%, greater than the 3.05 m (10.0 ft) long 1959 Mini. Also, at 3.98 m (157 in), the 2022 five-door hatch stands 68 cm (26.8 in), or some 21%, longer than the original 3.30 m (130 in) Mini estate versions.