Scalextric is a brand of slot cars, those little toy cars that race around a groove in a track. They were released in 1960 (You should check out some of the vintage Scalextric sets if you haven't seen them!). So these improvements to Scalextric sets will probably work with most slot cars but just so you are aware they are focused and design for Scalextric.Now I'm a big believer in you should measure before you improve and in this case it a fun too! So grab some track and build a simple course the cars can't fly off at high speed. Grab to cars and get them to race around at the highest speed. If they don't finish at the same time have a go though...
