Really good game and well-done mechanics. I think this game would have benefitted with a faster car movement adding some real sense of urgency. The different levels and design are also good. The music supports the game well.
Some bugs is the ppl are slow to leave in the circle and they still leave the car after I get out of the circle. Some UI is off screen like the left and right edged UI's.
Aside from that you have a really good base game to build upon. Kudos!! :D