I didn't know they made the GT with a 3.1 either. I got the car for $180 from a girl who was going to scrap it. The car was over heated and there was way to much oil in it when I check it (about 3-4qts over full) All she knew was it wouldn't start. I bought the car with intentions of putting a new engine in it but figured I would play with i before I pulled it out.