I know this is a casual social game, but I absolutely despise the donuts system, it is used purely as a way of stopping you from playing this "game". Isnt it enough to that it takes time to build things, do you really have to make it so that if you play the game like a game you can only build a little before having to wait! This is even worse than the way freemium waiting based pay2win casual mobile games such as clash of clans do it!
Strzygacz about Motor World: Car Factory, v1.7530