User blog comment:Na299/Ways of Gold Farming/@comment-26286481-20150416001639

I made around 800g on The 500 (only started doing this at stage 3). It works really nicely, just be patient in case it fails and redo the last race from your savegame. If it still fails then the problem is your platform (being an old phone/tablet).

And please refrain from using this on social media. You'll only accelerate the patching of this exploit.

Thanks Na299 for this nice guide