I would probably buy a hybrid (good on gas mileage AND you get a tax credit!). If you don't like hybrids, maybe go for a honda or toyota.
Oh, it's a good time right now to buy a car. There are all kinds of good deals out there. Plus you get to write off the sales tax of the car on your 2009 income taxes. =) Buy, Buy, Buy and stimulate the economy please! =)