X 2004 Rolls-Royce Phantom

6.7 L, 12 cyl, Auto (S6), Premium Gasoline

EPA Fuel Economy

Combined: 13 MPG

City: 11 MPG

Highway: 17 MPG

X 2009 Isuzu Ascender 5-passenger 4WD

4.2 L, 6 cyl, Auto 4-spd, Regular Gasoline

EPA Fuel Economy

Combined: 16 MPG

City: 14 MPG

Highway: 20 MPG