There are 10 series, one for each fully-upgraded car, with only the same four tracks used as in the Champions series - Suzuka, Marina Bay, Spa and Monza.
Each series comprises 40 events with each track having a TT, an extended Elimination (30s intervals), an Endurance, and two out of Autocross/Speed Snap/Speed Record...plus four cup races - 6, 9 and 12 laps plus 20 laps (19 for Spa).
50 Gold total reward per series.
It looks like the cup races will give M$ and Fame proportionate to what we've had in the past for F1 - for example the 19-lap Spa race pays M$248,100 and 44,800 Fame...
#edit# 20-lap Monza pays M$201,200 and 36,300 Fame...
#edit2# 20-lap Marina Bay pays M$198,050 and 35,700 Fame...
#edit3#...and 20-lap Sukuka pays M$222,750 and 40,200 Fame