Ya know, funny you should mention the Trail Blazer... I've started looking kinda closely at the new 400 model that just came out. Aside from it being a bit overweight (499 lbs dry), it looks like it could be a really fast machine with the right mods and a diet. Of course, I'm thinking entirely of a dune machine...
The thing about it is that it uses the same motor as the old 400 Sport, so there are already tons of mods for it. And being an automatic, it would be an awesome drag racer once the tranny was setup right. My only concern is engine braking... does it have any? It would kinda suck riding it on really steep dunes and having no way to slow down other than the brakes.
Rob