X 2005 Audi A4 Avant quattro

3.0 L, 6 cyl, Auto (S5), Premium Gasoline

EPA Fuel Economy

Combined: 19 MPG

City: 16 MPG

Highway: 24 MPG

X 2000 Porsche 911 Carrera

3.4 L, 6 cyl, Auto 5-spd, Premium Gasoline

EPA Fuel Economy

Combined: 18 MPG

City: 15 MPG

Highway: 23 MPG