I would get a 2006/2007 Mustang GT with all the rebates and Ford incentives. Ford will have lots of these brand new Mustangs unsold on their lots after 2 years of production. They will be giving good deals on them so I wouldn't get too worked up about things. Even if things aren't going to be so prosperous for you, you will be able to get one. If you buy a 2003/2004 GT you will be saving a few thousand dollars, but not that much. You are better off buying brand new and leaving aside other people's problems. That's why they traded in or sold their Mustangs and that's why you have lots of used Mustangs for sale at the dealer lots. Because they don't want to deal with the repair problems with their Mustangs. And as for the lease and rental fleet Mustang vehicles, most of them have been beaten by people that had them. You don't want to buy a rental fleet vehicle. Everybody that I know who bought a fleet rental vehicle ended up having problems with their cars down the road and it cost them thousands of dollars to fix them.