Slot-car maker Carrera has been around for decades, and this past year they have seen a rapid increase in sales as families are looking for new activities to do at home. I had a chance to see one of their slot car toys (they make many different options with licensed characters from popular TV shows and video games).
In a way it sounds like slot cars wouldn't be all that exciting - the cars just go around the same track. Oddly enough, though, they are fun - there's something quite pleasing about a smooth run around the track, and it can also be fun to push the speed and race another person without getting too out of control!
You can shop Carrera toys online, or find a store near you.