The question is, which tracks could they realistically use? That is, which tracks that are up to F1 standard are not currently on the F1 calendar?
This is not a circuit 'wish list', but more a case of us giving FOTA a helping hand as (I'm sure) they begin organising their 2010 season...
I'll start it off with 2 obvious ones: Silverstone and Portimao...
PS. The only benefit I see in a breakaway series is it's something to watch on the Sunday nights that F1 isn't on.

