The 2013 Porsche Cayenne is available as a 4-door, 5-seat sport utility. Starting at $48,850, the 2013 Porsche Cayenne Base (M6) is powered by a 3.6L , 6 -cylinder engine mated to a manual transmission that returns an EPA estimated 15-mpg in the city and 22-mpg on the highway. The top of the line 2013PorscheCayenneDiesel , priced at $ 55,750 , is powered by a 3.0L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 29-mpg on the highway.