The 2010 Ford Flex is available as a 4-door, 7-seat sport utility. Starting at $37,620, the 2010 Ford Flex Limited FWD is powered by a 3.5L, 6-cylinder engine mated to anautomatic transmission that returns an EPA estimated 17-mpg in the city and 24-mpg on the highway. The top of the line 2010 Ford Flex Limited w/EcoBoost AWD, priced at $42,465, is powered by a 3.5L, 6-cylinder engine mated to anautomatic transmission that returns an EPA estimated 16-mpg in the city and 22-mpg on the highway.