Jeremy Clarkson tests Toyota pick-up the Hilux with a series of extraordinary tasks, and puts the pedal to the metal with Mazda's sports coupe, the Wankel rotary-engined RX8. Meanwhile, James May puts the Fiat Panda through its paces, and Richard Hammond checks out classic cars in waiting - the Mercedes 190E and the VW Corrado. Simon Cowell is the Star in a Reasonably Priced Car