X 1999 Mercury Grand Marquis

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

EPA Fuel Economy

Combined: 18 MPG

City: 15 MPG

Highway: 22 MPG

X 2010 Nissan 370Z Roadster

3.7 L, 6 cyl, Auto (S7), Premium Gasoline

MSRP: $37,320 - $42,170

EPA Fuel Economy

Combined: 21 MPG

City: 18 MPG

Highway: 25 MPG