X 2010 Audi A6

3.2 L, 6 cyl, Auto (variable gear ratios), Premium Gasoline

MSRP: $45,200

EPA Fuel Economy

Combined: 22 MPG

City: 18 MPG

Highway: 28 MPG

X 2011 Rolls-Royce Phantom

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

MSRP: $380,000

EPA Fuel Economy

Combined: 14 MPG

City: 11 MPG

Highway: 18 MPG