I'm not interested in making a pro touring car I was just wondering after I played Froza 4 on the Xbox and beat on a Buick for three laps with my buddy and his Fox body. I wondered how this would be in real life if a turbo Buick could really handle 3 hard laps around a track because I've heard guys talk about knock at the end of the 1/4mile. I guess the tune would be a lot different, Maybe a 6 speed automatic would help too.