This game is good everywhere, but the progress of playing is really, really, too slow. I couldn’t buy the fourth car I like in 33.3 hours.
My suggestion is to divide the rewards into grades like the cars, and the rewards of the corresponding grades can be obtained with which grades of cars to participate in the competition. Otherwise, it is really uncomfortable to only make a little money at the beginning of the game, and there is no motivation at all. The blow is very big, and it is very tiring to play.
(In addition, please complete the rest of the map quickly, I can't believe that you have not finished the map and provided it for play!