X 2009 Infiniti QX56 2WD

5.6 L, 8 cyl, Auto 5-spd, Premium Gasoline

EPA Fuel Economy

Combined: 14 MPG

City: 12 MPG

Highway: 18 MPG

X 2003 Porsche Boxster S

3.2 L, 6 cyl, Auto (S5), Premium Gasoline

EPA Fuel Economy

Combined: 18 MPG

City: 15 MPG

Highway: 24 MPG