It didn't take long for the car to gain speed and then fly off the track while rounding a banked curve. Of course, the car was being driven by an amateur. This is not the Indianapolis 500, but a race ...

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 ...