S15, E3: Jeremy, James and Richard drive the Aston Martin Rapide, Porsche Panamera Turbo and the Maserati Quattroporte; four-seater cars from manufacturers more famous for their two-door cars. Richard drives the Chevrolet Camaro SS and Mercedes E63 AMG. F1 driver Rubens Barrichello tries his luck in the Reasonably Priced Car and Rupert Grint is the Star in a Reasonably Priced Car.