Jeremy Clarkson, Richard Hammond and James May seek petrolhead heaven in three 1500 pound rear-wheel drive coupes and somehow find themselves entered in a terrifying French ice race. Meanwhile, Richard tries to speed up summer holiday flights by inventing the sport of airport vehicle racing, Jeremy walks with dinosaurs in the new BMW Z4, and actress Sienna Miller is the Star in a Reasonably Priced Car.

Jeremy Clarkson and James May are set the task of creating a memorable car advert. The boys quickly fall out on set as James tries to fill every second of airtime with immensely complicated information about fuel economy, whilst Jeremy just wants everything to explode. Meanwhile, out on the track, Richard Hammond ends up going mostly sideways in the new Vauxhall VXR8 Bathurst. The Cool Wall returns after a long absence, and American chat show legend Jay Leno is the Star in a Reasonably Priced Car.