Pre-owned is nice and all, but when it comes right down to it, it is still a used car. Getting a loan is going to be more expensive, and you don't know who owned it before and how they used it. Personally I would buy new, as far as what to get, there are plenty of pretty peppy cars out there that get good gas mileage from basically any company. The offerings from Ford and GM right now, will get you either your gas mileage requirement or the fun factor, but not really both. The Koreans have a few good cars like the Optima and Sonata that might be worth a look. The VW CC with the V6 might be worth a look, although I don't know what kind of mileage it gets, and the 2.0T should get over 30 mpg hwy if you didn't want to go V6. I don't remember from your first post whether you said 2 or 4 door, but I had a Volvo C30 loaner a couple of weeks ago, and loved it, good power out of the little 5-cylinder turbo, good room on the inside, pretty comfortable, looks are take it or leave it, but I really liked the car.