The Queen once asked Christian Horner to explain the feud between Sebastian Vettel and Mark Webber after their relationship as team-mates at Red Bull broke down.
There was always some form of tension between the two drivers. Vettel was the German wunderkind, who had risen through Red Bull's youth programme to become world champion in 2010 – and he would go on to defend that status successfully three more times after that.
Webber was brought into the team and always felt like an outsider. Tensions between them finally came to a head in 2013, during their final season together, when Vettel ignored team orders to overtake in the late stages of the Malaysian Grand Prix.
