So I may not be huge on the driving, but let me tell you, the vehicle creation is freaking awesome. I spent at least an hour just building the strangest vehicles I could and then testing them out. The best part is that I only had some basic parts. I can't wait to see what kind of crazy shit I can build once I have earned all the parts in the game. The vehicle builder is really solid and allows you to just go nuts and build whatever you want. I also like that they added a laid back physics model to the vehicle. For instance, if you build a land vehicle that's top heavy, good luck making sharp turns.
Basically, I'm just as excited for this game as I was before. It may be my penchant for all things Banjo Kazooie, but I had a great time playing the demo, and I'm sure I'll sink many hours into the full game.