X 2012 Porsche Panamera

3.6 L, 6 cyl, Auto 7-spd, Premium Gasoline

MSRP: $75,200

EPA Fuel Economy

Combined: 21 MPG

City: 18 MPG

Highway: 27 MPG

X 2002 Audi A8 quattro

4.2 L, 8 cyl, Auto (S5), Premium Gasoline

EPA Fuel Economy

Combined: 18 MPG

City: 15 MPG

Highway: 23 MPG