X 2018 Porsche Cayenne S

3.6 L, 6 cyl, Auto (S8), Premium Gasoline

MSRP: $77,400

EPA Fuel Economy

Combined: 20 MPG

City: 17 MPG

Highway: 24 MPG

X 2015 Mercedes-Benz E400 Convertible

3.0 L, 6 cyl, Auto 7-spd, Premium Gasoline

MSRP: $61,350

EPA Fuel Economy

Combined: 23 MPG

City: 20 MPG

Highway: 29 MPG

MPG estimates for 2016 and older vehicles may have been revised. Learn More