X 2007 Toyota Prius

1.5 L, 4 cyl, Auto (variable gear ratios), Regular Gasoline

EPA Fuel Economy

Combined: 46 MPG

City: 48 MPG

Highway: 45 MPG

X 2001 GMC Sierra 1500 2WD

4.3 L, 6 cyl, Auto 4-spd, Regular Gasoline

EPA Fuel Economy

Combined: 17 MPG

City: 15 MPG

Highway: 20 MPG