Bernie Ecclestone confirmed he has been approached.

Britain could be set to secure a second grand prix, after the Daily Telegraph reported on Friday that plans are afoot to host a race in and around London’s Olympic stadium.
Jul 29
Red Bull has reacted in the wake of its consecutive grand prix defeats in Britain and Germany.

Mark Webber insists the reaction was not an over-the-top “kneejerk” one, with his teammate Sebastian Vettel explaining that there are a “couple of things” that should make the RB7 more competitive this weekend.
Jun 29
Red Bull might now be expected to maintain its return to form as formula one moves on to Silverstone.
After two McLaren victories on the trot, and the British team leading both the drivers’ and constructors’ world championships, Red Bull’s Sebastian Vettel won from pole position last weekend at Valencia.
Nov 24