Soapbox derby racing goes downhill

While motorsport is undeniably popular, the expense is just one reason why most people will never even think of giving it a go.

But gravity soapbox racers can reach up to 50mph in their events using nothing but a hill and whatever odds and ends they have lying around.

Mike Bushell went to one of the more than 30 races in the summer series to find out what driving without a motor is like.