HELP! I'm running low on R$, and the Porsche 919 Evo series starts in less than 24h....

Since the Monkeys introduced the (not so) new Motorsport category, and removed the old 10-lapper at Le Mans in Endurance series, I have never checked or paid attention to what race gives the best payout in terms of R$. 

Anyone with that info? Is the same race also best for Fame farming?