Unlockables

I give this game a 2 star rating. I had a lot fun. I already upgraded the car to the max. What I dont understand is how Im supposed to unlock the next car and the next levels. There are also too many ads every 5 seconds. I like this game very much because I want to be a police officer myself when I grow up. Do I need a certain amount of money for the next levels and car or what? Anyhoo, this is my 2 star rating because of the levels, the car, and the ads. If someone could please tell me how to unlock the next car and levels and get rid of the ads, Id greatly appreciate it. Thanks for listening and If you can make my wishes come true, Ill greatly reconsider a 5 star review. Thanks again.

Francis Blaze about City Police Car Driver Simulator – 3D Cop Chase