Needs crash fixing

Its a great game and all but I have suggestions and a complaint.

Suggestions:
Be able to paint vinyls on your car
Earn coins to buy cars or upgrades instead of real money
Be able to buy parts on your car

Complaint:
Crashing.
It exits me out of the game.
now its unplayable at matters.
I try reinstalling but it never works? So please fix!

From Fred about Devil's Peak Rally