The GTPs/ Regals Transmissions are the weakest link. Other than that, those cars are rock solid reliability. I know alot of good friends here in pittsburgh that uses them as daily drivers and somewhat of a drag car. easy 13's
Great in the snow and so so MPG.
http://www.pittspeed.com/forums/ and see the Grocery Getters first hand.
I still wouldn't own one, thats just not my preference.