For the last couple of years we have camped at Litchlake Farm, marvellously close to the circuit, it runs alongside the main road that leads to the main entrance, it has plenty of amenities, fast food, shops and showers, and a pedestrian bridge takes you over the road. It is a big site so no probs getting booked.
If you book Luffield you can be in the circuit and your seat within 10 minutes, so it is ideal for us oldies or anyone with mobility problems, especially as you are on pavements the whole route.
We have stayed at Whittlebury Park, which is excellent, but the path from the park is rougher walking of 20/30 minutes and brings you to the Copse gate.
Hoping this is helpful, with everything so expensive it’s good to get it right.