Well, I do
race mine on occasion (Solo II and one open track day at PIR). I use the Autostick extensively on those days, and occasionally when I have to negotiate traffic on the freeways.
I've had no problems with our Intrepid, but then I don't tend to use the tranny to slow the car down - I use the brakes for that.
However, the track day was probably harder on the tranny than any other driving I've done -- 5 sessions of 15 minutes each (about 6-8 laps) with 10 gear shifts per lap, with 4 of them as full throttle upshifts (sorry tranny, I should have lifted, but didn't). I was more concerned about that than any other driving I've done, but this last week the car doesn't seem any worse for the experience -- the tranny still shifts as smoothly as ever, and there are no new noises from either the engine or transmission. I did
notice that the computer turned off the traction control when I forgot one time. I was extremely careful to not get a lot of wheelspin on the inside front wheel, but I guess that when you break 100 MPH, the computer says "OK, that's enough for the traction control."
Of course, if it did
break, I would be really upset, because it should be able to handle it.