Scalextric brings back many happy memories of my misspent youth racing around mini circuits at break neck speed and smashing-up cars. If only I'd had this tool, our competitions would have been much more professional.
As the name suggests, Scalextric Track Length Calculator enables you to measure the length of circuits so you can setup professional competitions.
The system works by constructing a virtual circuit with the pieces you have at your disposal. Immediately, it will tell you exactly how long your pieces will make the circuit in total as well as the difference between your various designs.
Not only can you create more accurate competition circuits with this tool but you can ensure that circuits are "right" for the cars that you have i.
e. not too fast or slow. You can also know exactly how far you have between checkpoints which makes for a much more exciting race enabling you to calculate split times, average speeds etc.