X 2011 Lexus IS 350/IS 350C

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

MSRP: $46,640

EPA Fuel Economy

Combined: 22 MPG

City: 20 MPG

Highway: 27 MPG

X 2008 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