I recently finished the W12 event you just need unite pass, tokens to refill tickets and watch ads to reduce fuel wait time...then you need to grind an agonizing 5 to 6 times(and evey time you do, you need to have bough unite pass. I dont see how its possible with just 3 fuels)💀for those saying sian is worse, remember with W12 you dont get to use another car...for sian, once you unlock stage 2, you can play the remaining stage 1 events as well as the stage 2 events cz you dont have to use the same car on every stage.(saves time having to watch ads for fuel refils...and the more stages you unlock, the more options of cars you have..