Tha Calum Iain a' dol dha na Crìochan gus a charaid, Robin Parkinson fhaicinn a' rèiseadh ann an ralaidh caran eadar-dhealaichte. Tha na càraichean luath 4x4 seo air an dealbhadh airson rèiseadh far an rathaid. Tha an cùrsa tro Choille Ghall-Ghàidhealaibh cho doirbh ri gin a tha Calum air fhaicinn. Bidh duilgheadasan aig mòran dhe na càraichean agus dràibhearan leis na dùbhlain a bhios romhpa anns an ralaidh. Bidh duine a chuireas crìoch air an rèis gu math fortanach. Aig a' cheart àm, tha Louise a' dol a chuideachd buidheann a tha dìleas do bhanaichean campachaidh VW. Gheibh i a-mach mun eachdraidh annasach aig na bhanaichean seo 's mar a bha iad cho cudromach ann an cultar nan 1960an. Tha Fiona a' dràibheadh an Gran Turismo aig BMW agus a' faicinnn an urrainn dha a bhith freagarrach dhan h-uile duine. Agus anns na Rèisean Craicte tha na preasaintearan air bhioran. Saoil dè bhios iad a' rèiseadh an t-seachdain seo? Calum Iain heads to the borders to see his rally driving buddy Robin Parkinson in a rally with a difference. These superfast 4x4 cars are designed for off-road racing and the course through the Galloway Forest is one of the toughest Calum Iain has ever come across. Many of the cars and drivers struggle to cope with the tough race conditions. The lucky ones are those who manage to complete the race . Meanwhile, Louise joins a band of VW campervan enthusiasts on a more leisurely tour and discovers the amazing history of this iconic symbol of the 1960's counter culture movement. BMW enthusiast Fiona test drives a 5 series with a difference and asks if the new Gran Turismo saloon, can be all things to all people. And on the Wacky Race Track our presenters are ready for their next challenge. What will they be racing this week?