For a mixture of practicality and dreaminess, accepting an 8 round schedule (just 'cause it's more fun), and trying to represent something like a balance of relative importance to sportscar racing:
Europe: Spa, Le Mans and a rotating race (Silverstone, Monza, Nurby, for the east Brno?)
NA: Sebring, Road Atlanta
SA: Interlagos
A: Suzuka/Fuji, Sepang/Delhi
If you'd let me have more than a bucket of dreaminess I'll toss in Daytona for #9
