Jeremy wonders why there aren't more three-wheeled cars and investigates further with a closer look at the Reliant Robin. James drives the Toyota Hilux pickup up an active volcano in Iceland; and The Stig rips up the track in the new Bentley Continental Supersports.
Elenco: Jeremy Clarkson , Richard Hammond , James May , Ben Collins , Chris Harris , Paddy McGuinness , Andrew Flintoff , Sabine Schmitz , Matt LeBlanc , Rory Reid , Perry McCarthy , Eddie Jordan , Jason Dawe , Chris Evans .