On June 2 Williams F1 hosted a celebration for their 40th anniversary at Silverstone race circuit. The day consisted of 9 different types of cars, one of my favourites was the 6 wheeler. This meant that it added to the traction and also reduced the frontal drag. One of the most surprising things of the day was a tractor from JCB which could do a wheelie with its 9.5 litre engine and 850-1000bhp, the sheer power managed to drive the front wheels up off the ground. Some of the newer F1 cars were also there which was a great site, overall, it was a great day.