Board Thread:Game Discussion/@comment-223.176.188.59-20171225133301/@comment-2605:A000:132E:822F:48CA:1231:EC11:3D85-20171225200432

Actually, since you have a decent amount of gold, maybe one of the LMP1 cars coming up on sale will have a GIN option. I did that at a very low level on one of my secondary games, and it made a tremendous difference. That would give you the best traditional farming method in the game.