It was the mid-1960s, and it was all a bit mad. I bought one Airfix slot-car acing set, which grew into a 110-foot four-lane track made from Airfix pieces screwed onto several sections of chipboard ...

We've all raced a slot car, right? You pick out your car and carefully line it up with a thin groove running along the center of a track. With the remote in hand, you watch it zip around and around ...