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Tha Air an Rathad aig cumhachd an dealain an t-seachdain seo, a' gabhail cuairt ann an d脿 ch脿r bho gach ceann dhen mhargaidh - an Nissan Leaf agus an Tesla Model S 霉r. Ach c貌 gheibh fear seach fear a dhr脿ibheadh? Faodar 250 m矛le a dh猫anamh anns an Tesla Model S, agus gheibhear bho 0-69 ann an 3.1 diogan - 脿m do-chreidsinneach. Tha Donnie agus Murray air bhioran gus a dhr脿ibheadh, ach 's ann aig Linda a tha am bonn a dhearbhas...

'S e an Leaf an c脿r dealain as motha a tha air reic anns an RA, ach gun e air chomas ach nas lugha na 100 m矛le a dh猫anamh, 's e c脿r a' bhaile mh貌ir a th' ann. Tha Air an Rathad a' feuchainn d猫 cho math 's a bhiodh e eadar an dachaigh agus an obair.

Agus gun satnav no f貌naichean-l脿imhe gus an cuideachadh, tha gach sgioba a' dol air chall gu dona ann an Railidh na Trealaich . Tha iad a' feuchainn faighinn gu Taigh-tasgaidh C貌mhdhail nam Monadh-Liath ann an 脌fard, far a bheil seann ch脿r a' feitheamh riutha.

'Air an Rathad' - 's ann mu na c脿raichean a tha e!

Air an Rathad goes all electric in this episode, test driving cars from both ends of the market - the Nissan Leaf and the new Tesla Model S. But who gets to drive what? The Tesla Model S has a range of 250 miles and does 0 to 60 in 3.1 seconds. Both Donnie and Murray are desperate to drive it, so Linda decides to toss a coin...

The Leaf is the UK's top-selling electric vehicle, but with a range of under 100 miles, it's a city car. Air an Rathad tests its commuting capabilities.

And without satnav or mobile phones to assist them, both teams get hopelessly lost in Railidh na Trealaich. They're trying to get to Grampian Transport Museum in Alford, where a vintage vehicle is waiting for them on the track.