Donnie, Linda and Murray are back for more motoring fun, driving some of the greatest, most exciting, and most expensive cars on the market today. They take part in motor events and meet the car fans; and they are back on the road again, with the Air an Rathad Rally. Donnie is off to the Grampian Transport Museum in Alford for the "How Many Left", event: a car show with a difference. And it seems to have a bit of an unusual effect on him. Linda is driving BMW's new baby M car, the M2. With the recent M3 having grown up a bit, can the M2 put the fun factor back into the German manufacturers arsenal? And the teams find out what they have in store for them in this year's Ralaidh na Trealaich. They find themselves in an unfamiliar location with no sign of any cars. Will all become clear?

This week on Air An Rathad, Linda takes part in one of the oldest forms of motorsport: The Hill Climb. Specifically, the Doune Hill Climb. And she'll be competing in one of the oldest designed new cars you can buy today, a Morgan Plus 4. And as Morgan has also brought out a new Aero 8, she gives that a go as well. Murray sees if the Peugeot 208 GTI by PeugeotSport can recapture the magic of Peugeot's iconic 205 GTI hot-hatch of the 80s. PeugeotSport has been responsible for the racing side of Peugeot for decades, so hopefully their magic touch can bring this 208 alive. And the teams slow down the pace in this weeks Ralaidh na Trealaich. After last week's high-flying excitement on the beach, this time the teams are in a car park, somewhere in South Uist.