BTCC Brands GP Circuit: Best viewing positions?

[ggdrew]

I'm going to Brands this Sunday for the BTCC finale which is using the GP circuit, but I haven't been since the 1978 British Grand Prix! Looking for suggestions for the best viewing points. Of course Paddock bend is obvious, but I have a feeling that some of the GP-loop corners could be worth a trek.
I don't mind walking out to the back section for one of the 2 heats.

Advice please!

[ggdrew]

Many thanks for confirmation. a walk around the inside of the GP loop will soon show itself