Thrills and spills at Rally Hebrides in Lewis, where even Calum Iain comes a cropper. Fiona heads for Dundee in a tank and Murray is rather taken with the new Lexus Hybrid.

Murray tries his hand at limo driving, as he chauffeurs a 21st birthday party around Kilmarnock, while Fiona takes the new Saab 9-5 estate for a spin. Calum Iain visits body styling expert Kenny Laird to see the latest in customised luxury.

Calum Iain and Louise go head-to-head at an Autotesting meet at Knockhill, while Fiona puts the Alfa Romeo Mito through its paces. Murray reveals all as he tests this week's gadget - a car shower.

Ace stunt driver Paul Swift has Fiona clinging to her seat as he shows her how to perfect J-turns, while Murray tries out tractor racing in Lewis. Louise test drives car of the year, the Vauxhall Insignia.

Louise watches banger racing at the Racewall in Cowdenbeath - but has she the bottle to have a go herself? Fiona has her first motorbike lesson and finds it's not as easy as it looks. Murray test-drives the Kia Soul Burner.

Fiona and Murray swap four wheels for two at the Simmer Dim Motorbike Rally. Louise is at Knockhill with 14-year-old Morris as he has his first go behind the wheel, and Calum Iain finds out if the Mitsubishi Evo X really is the petrolhead's dream car.

Calum Iain and Louise are in the Cairngorms for the first ever Soapbox Challenge. 50 mph in a cartie - are they mad? Calum Iain puts the electric Tesla Roadster through its paces and asks if it can really beat its petrol rivals.

The team are in car heaven at the Goodwood Festival of Speed, where they meet up with former F1 Champion Sir Jackie Stewart, and Motorcycle Mania star Jesse James. Louise test drives the new Rolls Royce Phantom Coupe - does she think it's worth £300,000?