The 2008 MINI Cooper S is available as a 2-door, 4-seat hatchback. Starting at $25,400, the 2008 MINI Cooper S Convertible is powered by a 1.6L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 21-mpg in the city and 29-mpg on the highway. The top of the line 2008 MINI Cooper S Hatchback, priced at $21,200, is powered by a 1.6L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 26-mpg in the city and 34-mpg on the highway.