I agree, the Concept lightning looks amazing, but I read somewhere they scrapped it, tis unfortunate.
Have you had a chance to drive the ST-8? I would have to say that I very much enjoy Jeeps, but generally the older Wranglers and Cherokees, great offroad vehicles, almost rolled mine a couple times "drifting" on a raised dirt road and yea couldn't get it back before going down the side and getting up on two wheels then turning into it and pulling out of it. (Scared the hell out of me)
I like your diesel comment, and it is pretty accurate, the GMC site said their truck was capable of towing 13000 pounds and the Ford site said theirs was capable of 16000 pounds, I mean what are you going to be pulling that requires that? Anyways, I love powerbraking my dads diesel just enough to get the turbo spooling then I punch it from lights, (not fast by anymeans, but I've beaten a few Hondas with it).