Wipeout:Headbutt - comes with motion-sensing attachment for PSP-headbutting speed boosts! Let's be fast! And buy new PSPs!

So far, I've found that very little in WOure has the solid grounding in physics that I'd hoped to see. Get hit by a rocket from behind and you come to a sudden stop? Get hit by another weapon from behind and start to MOVE BACKWARDS?!? It's like explosions create a vaccuum that you move into or something. I don't know what it is, but it's not physics. There's the effect of gravity on banked corners, but there's no centripetal force AFAICT.
At least for Barrel Rolls I can assume that we're being rewarded by the racing system for "looking cool" and entertaining the crowds. Just like the track enables the weapons already loaded on board, the track can enable an instant speed boost on landing.

Yeah, definitely reaching, but at least I can get there. Still prefer Hyperthrust.