The 2010 MINI Cooper is available as a 2-door, 4-seat hatchback. Starting at $18,800, the 2010 MINI Cooper Hatchback is powered by a 1.6L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 28-mpg in the city and 37-mpg on the highway. The top of the line 2010MINICooperConvertible , priced at $ 24,250 , is powered by a 1.6L , 4 - cylinder engine mated to a manual transmission that returns an EPA estimated 28-mpg in the city and 36-mpg on the highway.