The 2015 BMW i3 is available as a 4-door, 4-seat hatchback. Starting at $42,400, the 2015 BMW i3 Base is powered by a , 0-cylinder engine mated to an automatic transmission that returns an EPA estimated 137-mpg in the city and 111-mpg on the highway. The top of the line 2015 BMW i3 w/Range Extender, priced at $46,250, is powered by a , 0-cylinder engine mated to an automatic transmission that returns an EPA estimated