X 2011 Porsche Cayenne Turbo

4.8 L, 8 cyl, Auto 8-spd, Premium Gasoline

MSRP: $106,000

EPA Fuel Economy

Combined: 17 MPG

City: 15 MPG

Highway: 22 MPG

X 2009 BMW X5 xDrive 30i

3.0 L, 6 cyl, Auto (S6), Premium Gasoline

EPA Fuel Economy

Combined: 18 MPG

City: 15 MPG

Highway: 21 MPG