S16, E4: Jeremy Clarkson, Richard Hammond and James May set out to buy second hand convertibles and discover some of the unusual pitfalls to watch out for when picking up a used car bargain. Jeremy is also out on the test track in the insanely powerful Pagani Zonda R while Simon Pegg is the Star in the Reasonably Priced car and outspoken F1 legend Eddie Irvine sets a lap time in the old Suzuki Liana.