Make sure you know where the track is, north west edge of the village of Silverstone, back end of the rec, football/cricket pitch, I am sure there will be markers but do not drive across the pitch.
http://www.srcmcc.com/where.html
There are speed cameras on the A43 just south of the turn for Silverstone near Syresham & Crowfield
Will there be hot food again this year ? MrGPS1