There's a retro feel to this episode when we meet up with the Western Isles Classic Car Club. Tensions are frayed when Fiona and Murray get lost on Lewis on the club's 10th anniversary Treasure Hunt. They discover that you don't have to be driving the fastest car to win this 'tortoise and the hare' style race. At a motor event with a difference, Louise meets the audiophiles who spend much more on their car stereos than they do on their cars. Murray lowers the roof on the new convertible Fiat 500 Pop. At first he's convinced it's been designed with the female driver in mind, so he decides to find out if it's just as much fun to drive for blokes like him. Also, there's more chaos in this programme's Wacky Races as our presenters race towards the chequered flag.