X 2012 Bentley Mulsanne

6.8 L, 8 cyl, Auto (S8), Premium Gasoline

EPA Fuel Economy

Combined: 13 MPG

City: 11 MPG

Highway: 18 MPG

X 2010 BMW 750Li xDrive

4.4 L, 8 cyl, Auto (S6), Premium Gasoline

MSRP: $88,900

EPA Fuel Economy

Combined: 16 MPG

City: 14 MPG

Highway: 20 MPG