They are former team-mates and title rivals. In the same way that Sebastian Vettel and Mark Webber were engaged in a close-fought contest for this year's Formula One championship, back in 2006, Vettel and his then team-mate Paul di Resta were slugging it out for the Formula 3 Euro Series title. On that occasion, it was the Scotsman who came out on top.
Four years later, Vettel has become the youngest ever Formula One champion and di Resta is the new DTM title holder. As freshly crowned DTM champion, di Resta now has another target in sight – entry into Formula One where he relishes the idea of resuming his rivalry with Vettel.