Jaguar S-Type 4.0  Do it.

But really, I'd say a new Pontiac G6, Neon (like mad said, lawl), Honda Fit, which is what my roomate was looking into.  Stock in Honda/Hundai, and Toyot have gone up, they have the cars with good gas milage.  I know Honda Accord / Civic have high resell value, so you could go with an 02 - 03 for that much.

I actually make my last car payment tom.   I drive a grand prix. Sometimes.