X 1984 Buick Regal

5.7 L, 8 cyl, Auto 4-spd, Diesel

EPA Fuel Economy

Combined: 21 MPG

City: 18 MPG

Highway: 27 MPG

X 2003 Cadillac Seville

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

EPA Fuel Economy

Combined: 19 MPG

City: 16 MPG

Highway: 25 MPG