Costs to much / unfair/ more cars!!!

I usually buy gems but once it went up I said forget it .why raise the price of the gems?!? Also its unfair how people get rare cars and I dont Ive tried to get one but its impossible.. And to think that you could at least put a reward for spending $400 USD in the game but no?!! I just dont understand why people who have the best cars always brag.i mean I try but I dont get it oh and I think u need to add more cars and lower the cost of them too

NITRIOUS OXIDE about Racing Rivals, v4.3.1