Requires way too much effort to just play now. Even if I want to play it often, I am not able to. 10 fuel gets done so quickly, there is no way to earn cash, gold and event credits are just way too hard (unless you don't want to sleep for 5 days) to complete. There are other racing games that have faster more fulfilling progressions and where you don't need to wait an entire year to unlock a few cars.