Lewis Hamilton says he trusts measures put in place after the British GP tyre debacle

Lewis Hamilton says he trusts the measures introduced by the FIA and Pirelli in the wake of the British Grand Prix tyre debacle.

The situation has also highlighted the tricks - which Pirelli has said contributed to the blow-outs - teams use to extract the most performance they can from tyres. Besides altering the pressures and camber angles, they have also been swapping the rears around. The latter practice has surprised some but, according to Hamilton, it's nothing new. "I don't know who came up with it," he said. "I've been swapping tyres since I started Formula 1. It's been done for many, many years. "Everyone does it because there's a slight benefit in doing it." As F1 wrings its hands on the subject of safety, Mercedes at least gave Hamilton the chance to gain a little perspective - not to mention have some fun - on Thursday when he took a W154 out on the famed and feared Nordschleife. Britain's Richard Seaman used such a car to win the 1938 German GP at the track and Hamilton said: "It's just incredible, the power they had back then. It's very weird with the brake on the right side and throttle in the middle. "I was going down a hill and I'd forget where the brake was, panic a little bit and my heart would be in my mouth. "I felt like I was going to fall out of the car. I don't know how they did it. "It's just the greatest track in the world and driving it without barriers or anything, just trees, I just can't imagine the approach for one of those drivers on a race weekend - knowing it could be your last lap."