Discover Thumb Car Racing, the car racing game that can be played with the thumb in portrait mode, entirely free (all extra contents in the game are free)Thumb Car Racing is a stock car game with 120 tracks and 40 cars!Drive on wild tracks, challenge 9 opponents and try to make it to the podium and get virtual Bitcoins!Use this money to buy boosters and unlock new and more powerful cars!If you like full and free racing games, challenges and the smell of the asphalt, Thumb Car Racing is perfect for you! Key functionalities : - Car racing game against AI,- Optimized maneuverability for mobile (playable with 1 thumb in portrait mode),- 120 levels with rewards,- Coins to collect in each level,- 25 cars to unlock,- HD Graphics, sounds and interfaces,- Entirely FREE (no in-app purchase).