In addition, you'll only ever have to buy a costume once to use it in any of the games in the LittleBigPlanet universe. A small amount of costumes will be available at launch, with the rest to follow shortly after.
Unfortunately, the Assassin's Creed costumes (Ezio Auditore from Assassin's Creed II & Assassin's Creed Revelations) and the April Fools Fragrance Costume wont be available on LittleBigPlanet Karting at this time, but all the other downloadable costumes will be.
Additionally, Sony's reconfirmed the LittleBigPlanet PS Vita release date of 19th September, as well as confirming that you'll be able to pick up a LittleBigPlanet PS Vita bundle, which will include LittleBigPlanet PS Vita and the wi-fi PS Vita console for only $249.99. Finally, Sony also announced that you'll be able to get hold of LittleBigPlanet Karting in all regions from November 7.