X 2007 GMC Sierra C15 2WD

5.3 L, 8 cyl, Auto 4-spd, Regular Gasoline or E85

EPA Fuel Economy

Regular Gasoline

Combined: 16 MPG

City: 14 MPG

Highway: 20 MPG

E85

Combined: 12 MPG

City: 11 MPG

Highway: 15 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