In Smileyland, the cars are all made of cardboard. The characters use them as a means of transport in several episodes. They come in many different colors, such as red, black and cardboard brown.
- Some of them have the letters PTM on their license plates, which is likely to stand for "Pays Trop Mignon" (the French name of Smileyland).
- A more futuristic one was shown in "Let's Play Return to the Super Future" (and its sequel "Let's Play Return to the Super Past"), which could travel through time if driven at a speed of 88mph. This car was a reference to the DeLorean from the movie Back to the Future.