'97-'03 Grand Prix GTP.
Back in 2007 I bought a '97, 100% stock, 119k miles, GREAT condition, for 3k. Best daily I've ever had. Somewhat quick and easy to mod if you're into that, reliable 3800, good looking car, and FWD automatic so any moron can drive it in the snow
Edit: just saw that you're talking about a girl, but it still applies. If she doesn't care about going fast, a regular GT would do fine, they are nearly identical in every aspect other than the Eaton and whatnot