Most Fuel Effient
1.2009 Toyota Prius Base
2.2009 Honda Civic Hybrid CVT AT-PZEV
3.2010 Honda Insight LX
4.2009 smart fortwo pure
5.2009 Toyota Yaris Liftback 3-Door MT

Worst Fuel Effient
1.2009 Lamborghini Murcielago LP640 Coupe
2.2009 Ferrari F430 Coupe
3. 2009 Bentley Azure Convertible
4.2009 Bentley Arnage R
5.2009 Ferrari California California

I tell them to pick 2009 Toyota Prius Base because its good on fuel. Its a great choose because then the will have more money to spend on me.