Introduced by Brian Cant and Charlotte Allen
The Egg Race Champions of: BBC Radio London, John Stephenson; BBC Radio Oxford, Charles Baxter; BBC Plymouth, Tony Saunders take part in the second of the finals to find The Champion Egg-mobile of Great Britain.
Leading the race for the Hartmann Fibre Trophy - the BBC Radio Manchester champion - Barry Lockwood with his winning distance of 140.74 metres. Can any of tonight's challengers beat that?
Problem-solving teams from: The National Westminster Bank; St Marys Medical School and Robert Morton (DG) Ltd are given just two hours to design and build a mechanical device, a jumping flea to clear a cube.
Series judge Heinz Wolff
Specialist judge William Biggs, Professor of Building Technology, Reading University.