There are 40 karts total in Mario Kart World. You’ll start with 11, and you’ll need to unlock the remaining 29 by playing the game.

You can obtain Mario Kart World’s unlockables through various methods, so here's how to get new stickers, karts, characters, and costumes.

With vehicle parts and customization nowhere to be found, you can only unlock full new Mario Kart World karts, motorbikes, and ATVs