One super fast sports car - the Lotus Exige S. One super excited presenter - Calum Iain. Mix them together and you have Mr Mackenzie giving it welly round the Lotus test track, breaking the previous Air an Rathad top speed by miles! While Calum Iain gets a tour of the Lotus factory in Norfolk, Murray is taking a wee run around Ballater on Royal Deeside in the World Car of the Year, the VW Up. Cudig shares another classic car choice and Calum Iain is in complete agreement - but what is it? You'll have to tune in to find out! And we're back on the Wacky Race track for more fun and games with cars long past their sell by dates...

There's a lot of burning rubber in this episode, as Calum Iain heads to Crail for a master class in Drifting. And we stay in Crail for more fun and frolics in Wacky Races. The scores are all equal so whoever wins this next challenge is setting the pace! Murray is on home ground as he test drives the Volvo XC60 in Lewis. Can it get him from A to B as comfortably and safely as he would like? And Fiona's very happy with Cudig's classic selection- it's the ever popular MG.