Worth noting that the Finmeccanica rate above gives a higher daily rate than most but gives no one way drop off fee. I'm doing a 3 day drive from Washington to Chicago and it's a wash for me either way based on some of the other rates I have seen that charge 20 cents a mile but if I were doing a long one way drive in a short time (This sounds like the plot of the next Smokey and the Bandit movie) then I'd probably use the Finmeccanica rate.