Sweet!! That's it niloc, thank's a lot. I was actually trying to make 9 short handstands in a single jump, thinking it would give me more points than one long handstand. Also I didn't know you could do the handstand trick and steer your cart at the same time. And finally, your trick score is doubled if you manage to flip while handstanding, which makes it all pretty easy.
I don't think so -- it seems to me that with groupies you get to fly longer distance than without. Not sure about the air time, which would help for the last badge. (My best is 1600 now -- one more trick!)
Hm, pretty short. I never died but this was on Normal difficulty. I'm not going to try the harder ones. And personally, I think that powergun is the best.