The overall game is a good concept and works well as long as you can afford to buy packs to get good cars (which is the aim of the game). If you don't always buy, you do get left behind and miss out on good cars from the challenges which you cannot compete in 😭. What is annoying me lately is that with each new update i have CARS GOING MISSING FROM MY COLLECTION, for no reason, this is very annoying, especially when time and effort has been invested to upgrade them 😠 Rubbish Carbon Fibre drops.