Yes, you can get onto the track after the race! I’ve done it for the past 2 years :)
You will need to be near the gate on the pit-straight at the end of the race. They opened it just as the drivers were going onto the podium, but the crowds are quite large (be prepared for a squeeze).
Last year I was down at Wellington Straight, with 10 laps to go we moved round and got there with 2 laps to go (annoyingly, we missed Webber overtaking Alonso for the lead which was right in front of where we had pitched!). Did the same the year before with 10 laps to go when we were at Stowe.
You could actually set up near the gate that I mentioned, but get there early. Both years I’ve gone, it was full before 7.30am…
To give you an idea, the gate is right on the exit of Club corner where Lewis/Massa had their wheel banging the other year.
We were allowed to go down to the Club Corner (but no further) and as far as Abbey. By getting onto the track in the right locations, you will get to see the TV teams and possibly a driver at the fence.
Both years we’ve been part of the “Eddie Jordan” chants below the podium, and came close to getting an autograph from Rosberg and Jenson when they come up to the fence outside the garages.
Not bad for a GA ticket :)
Oh, and heres some pictures from when we went, for the gate and crowds to give you a better idea:
2011 – At the Gate (you can just see the large metal fence on the far left side, halfway down)
2011 – Nico Rosberg
2011 – Jake Humphrey
2011 – Crowds on the pit-straight after the podium
2012 – Looking back on the pitlane
2012 – Jenson Button
2012 – Pit Straight Crowds
2012 – Podium
2011 – And a flukey shot of Trulli retiring…
Edited for the image links, but also, looking at timtoo’s comment, if Silverstone were willing to help you out, you could actually get onto the stage at the Aftershow party where they interview drivers etc (BBC’s F1 Forum was filmed live on it last year). Just a thought :)