How about drag racing?
Both Shakespeare County and Santa Pod are good places to take photo's, with no high fence's, and you get to practice your panning.....very quickly!
The two FIA rounds at Santa Pod (May and Sept) are very busy, but still provide good opportunity's. There are other big meets on there such as the Easter Thunderball and the Summer Nationals which will be cheaper to get in and a little less crowded - but you don't get 320mph dragsters there, 'just' 200mph street legal cars....
Shakespeare County don't have such 'big' meets but they're a lot less informal - try the Hot Rod Drags or Nostalgia Nationals for diverse subject matter.
Failing that, take a look at some of the sprint car tracks like Curborough near Lichfiled, or Castle Coombe, where you can get closer and gain views without fences.
Having said that, Brands is good in places, but Silverstone and Donny are hard work - both with the crowds, and vantage points.