X 2009 Audi A6 Avant quattro

3.0 L, 6 cyl, Auto (S6), Premium Gasoline

EPA Fuel Economy

Combined: 21 MPG

City: 18 MPG

Highway: 26 MPG

X 1994 Mercury Grand Marquis

4.6 L, 8 cyl, Auto 4-spd, Regular Gasoline

EPA Fuel Economy

Combined: 18 MPG

City: 16 MPG

Highway: 23 MPG