The 2007 Acura MDX is available as a 4-door, 7-seat sport utility. Starting at $39,995, the 2007 Acura MDX Base is powered by a 3.7L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 22-mpg on the highway. The top of the line 2007 Acura MDX Technology Pkg w/Entertainment Pkg, priced at $45,695, is powered by a 3.7L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 22-mpg on the highway.