I have tracked my car 5 times in the last six months and going to another one at Thunderhill July 27th and have not experienced any problems to date with tracking and I push it really hard. Other then what was stated anyone here can attest that the 3.4's did have problems on the track under then heresay? Have not stepped into a 3.6 but from word of mouth a better car and of coarse love the new car thing : ). Regards. Mike