Here's one, sparrow hijacking. Imagine this, your opponent and you are side by side. Hapless dregs and the occasional vandal passing inches between you and the other racer. The camera zooms in on your guy. You jump off your sparrow, spinning (winning, maybe?) and unleash a can of "Chuck Norris' Signature Recipe Roundhouse Kick" into their face and they go careening off their sparrow only to land in the lap of one quite surprised vandal. Then you steal their sparrow and they have to walk the rest of the way like the loser they are. That would be... mmm... so grossly incandescent... Oh yeah... Jolly Cooperation delivered to their face with the heel of my boot...