The Roush cars are full production spec... 145mph speed governor and all. Even still today at Barber Billy turned a 1:39 lap with it... pretty cool cars. The improper hose clamp thing on Catesby's car was installer error.. It seems Jose (Catesby's Co-Driver) has got it worked out for now. I think if he had a decent chassis setup on his GTR and proper track prep he would have been right there battling it out with us all week.