British Grand Prix 2013: David Coulthard's inside track Despite the fact that Sebastian Vettel has a healthy lead in the drivers" title race, the championship remains a wide open three-way battle between Red Bull, Ferrari and Mercedes - and I fully expect this race to be fought over by those three teams. Mark Webber will be particularly psyched up, having just announced his decision to quit Formula One at the end of the season. He likes it here. It will also be worth watching out for how Mercedes manage their tyres at Silverstone in the wake of their "private" Pirelli test at Barcelona, another high-speed circuit. If Lewis Hamilton or Nico Rosberg win, expect plenty of intrigue on that score. Silverstone is a super-fast, flowing circuit. This is what F1 is all about; man and machine pushing to the absolute mechanical and human limit. Whereas Monaco, for instance, demands focus and concentration of a driver within a very specific band, Silverstone is all about extracting the full potential from an F1 machine. It is all about faster, higher, stronger. I expect the team and/or driver who can push it the hardest to win. It is a very telling race in that respect; indicative of a car's, and a driver's true potential. The row over the "private" test which Mercedes carried out for Pirelli has dominated the headlines over the last couple of weeks. My rule has always been that I only get involved in things I can influence, but in general terms, it is clear that any track time will be of benefit to a team, particularly when they use their current race drivers in a current car. For Mercedes to have claimed otherwise was disingenuous. But anyone claiming they will not be hurt by missing the forthcoming young driver test is also missing the point. I thought it a fair punishment given the circumstances. Race times and television Saturday Qualifying 1pm Sunday Race 1pm Qualifying Live on BBC1 and Sky Sports F1 Race TV: Live on BBC1 and Sky Sports F1 Cloudy but dry