X 1991 Cadillac Seville

4.9 L, 8 cyl, Auto 4-spd, Premium Gasoline

EPA Fuel Economy

Combined: 18 MPG

City: 15 MPG

Highway: 24 MPG

X 2012 Ford Mustang

3.7 L, 6 cyl, Auto 6-spd, Regular Gasoline

MSRP: $22,310 - $40,310

EPA Fuel Economy

Combined: 23 MPG

City: 19 MPG

Highway: 31 MPG