Whats that orange bit for?

which car is slow?

the capacitor sould not affect the speed, but scalextric arrange it and a black spacer to make sure the wires dont short out to each other or the motor casing. chech thant the bare wires near the motor on the slow car are not touching anything, or else are insulated.

however, this could be a red herring

baz - what about inside your next door neighbours slot cars? Then you wouldn't have snow on your TV when they felt like racing

hmmmm - that last post did sound more like inte than the bespectecaled mild manared Baz