Jeremy, Richard & James look at fuel economy. They find out how far five supercars can go on one gallon of petrol (the answer? Not very) and Jeremy compares the Toyota Prius with the BMW M3 to show that driving style can make a big impact on how much fuel you use. The presenters are challenged to make their own police cars from old bangers and put them to the test in a chase situation. Jeremy reviews the awesome lightweight Ferrari Scuderia. Alan Carr and Justin Lee Collins are the 'Stars in a Reasonably Priced Car'.