As far as photo location goes at Brands...
I quite like the Cooper Straight. On the outside you can get good 'heat-haze' shots on vehilels exiting Graham Hill bend (at the bottom of the hill down from Druids).
This shot was taken from just past the emergency vehicles access gate on the Cooper Straight.
Victor Cox Powering out of Graham Hill Bend
GH Bend offers good close action as racers jostle for entry and exit speed before powering up the back straight.
Admittedly bikes are a slightly different subject to cars but the space available between subject and background allows for decent 'heat-haze' and use of Depth of Field shots as shown in my example. I'd recommend it as a location to anyone on a visit to Brands. The best bit is, they use it on both the Indy and GP circuits.
Guy