Ed and Oucho's Excellent Inventions - Series 1 - Fizzerrari

Factual programme. Ed and Oucho are travelling all over the country making inventions from bits of old rubbish they find in the back of their van. They are trying to build the Fizzerrari, a car powered only by lemonade, which will race against the Oucho-mobile. It starts off well, until Oucho crashes the prototype. With the Big Big Cheese on their backs, will their general uselessness and lack of science know-how stop them from building the Fizzerrari in time?