Originally Posted by BRC
I doubt she was unlockable when she was one of the characters shipped with the game.
As for the other racers, we saw one named candle who could light some of the terrain on fire/trigger explosions, and it was clear that none of the other racers could. King Candy's car seemed especially good at pseudo drifting/power slides.
So Vanellope having a minor teleport power (aside from when she's rescuing Ralph it doesn't appear to go very far at a time) doesn't seem all that broken really.
Jump into your racing car.
Sugar RUSH! Sugar Rush!
(If it's stuck in my head, it will be stuck in yours, bwaa ha ha ha ha haaaa)