Board Thread:Game Discussion/@comment-2A02:C7D:C14:300:69CD:7081:3E2A:8956-20170915073639/@comment-29799506-20170915113830

No. You should make progressing to Master and unlocking Ferrari Classics your first priority. The series has highest payout (R$/fame) before you reach Legends category. Once you are there you can use F40 to farm gold. It would help you tremendously in the long run.

NASCARS should probably be your last priority. The cars are mostly the same, running on same oval tracks over and over, and the cars and upgrades are very expensive (you need over 10k gold to complete it). Unless you are a fan of NASCARs, you are better off paying gold for other cars.