World champion Jenson Button insists his friendly rivalry with McLaren teammate Lewis Hamilton shows drivers can have a healthy relationship and still fight for the title.

In the run-up to Sunday's British Grand Prix, Red Bull teammates Mark Webber and Sebastian Vettel were involved in a war of words that once again highlighted the issue of drivers struggling to maintain relationships in such a competitive environment. Webber, who won the race, was unhappy at what he perceived was favoritism towards Vettel ahead of qualifying on Saturday.

Questions have also been asked about Button and Hamilton's relationship but the pair is adamant there is nothing wrong with its friendly rivalry.