The 2018 Porsche Cayenne E-Hybrid is available as a 4-door, 5-seat sport utility. Starting at $79,900, the 2018 Porsche Cayenne E-Hybrid S is powered by a 3.0L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated The top of the line 2018PorscheCayenne E-HybridPlatinum Edition , priced at $ 82,800 , is powered by a 3.0L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated