You should know that Adobe Flash Player is constantly updated, the games might not work correctly if you don't update your Flash Player.
Download new version of Flash Player from the official page
Do you like tuning but you can't afford it? Do you want a tuned car but don't like tuning? In Customize Your Ride, you'll be able to personalize the car model of your choice, adding details and changing the way it looks as much as you want.