The 2013 Acura MDX is available as a 4-door, 7-seat sport utility. Starting at $43,280, the 2013 Acura MDX Base is powered by a 3.7L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 21-mpg on the highway. The top of the line 2013AcuraMDXAdvance Pkg w/Entertainment Pkg , priced at $ 54,805 , is powered by a 3.7L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 21-mpg on the highway.