Like Dave said the track eventers are rare, I did about 6 track events last year and never came accross another Contour. I will be doing at least 6 events this year around the NE, Lime Rock, Watkins Glenn, Pocono, and hopefully the new Englishtown track. If you're ever coming north let me know I'll do the event with you if I can. I just did a NASA event at V.I.R. in February, that was a pretty cool track, long drive to get there though.
