User blog comment:Na299/Ways of Gold Farming/@comment-122.173.217.207-20150518042823/@comment-26249472-20150518074012

Retire-retry works, no need to force close - even when you orce close without finishing the goal starts level up upon start and you have to restore from cloud.

Sometimes it's good to slow down bots to finish with damaged car, works great - start - retire - retry.

Happy racing ;)