X 2012 Infiniti M37x

3.7 L, 6 cyl, Auto (S7), Premium Gasoline

MSRP: $49,850

EPA Fuel Economy

Combined: 20 MPG

City: 17 MPG

Highway: 24 MPG

X 2010 Mazda CX-9 2WD

3.7 L, 6 cyl, Auto (S6), Regular Gasoline

MSRP: $28,805 - $32,815

EPA Fuel Economy

Combined: 18 MPG

City: 16 MPG

Highway: 22 MPG