The 2016 Porsche Cayenne is available as a 4-door, 5-seat sport utility. Starting at $58,300, the 2016 Porsche Cayenne Base is powered by a 3.6L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 24-mpg on the highway. The top of the line 2016PorscheCayenneDiesel , priced at $ 62,300 , is powered by a 3.0L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 21-mpg in the city and 28-mpg on the highway.