The presenters provide some essential consumer advice as Jeremy and James use a hire car and a boat to find the quickest way to get around in New Zealand, while Richard gathers a selection of cabs together to determine which is the fastest taxi… in the world. Elsewhere, the Ferrari F12 Berlinetta gets the chance to show what it can do on the roads of Scotland, and TG tackles water-based motoring once again with the creation of the fabled Hovervan. Ron Howard, Rachel Riley and Benedict Cumberbatch are among the celebs let loose in the brand new Reasonably Priced Car: a red Vauxhall Astra Techline.