A free app for Android, by Hyperkani.

Stunt Car Challenge 3: Online Multiplayer is a racing game with casual fun and challenging levels. You can compete against other players in the multiplayer racing arena and rise to the top! Tweak your car to be the best on the planet!

There are many different types of cars, trucks, and other vehicles in the game. Some are for driving on the tracks, while others are for driving on the ramps. There are also a lot of different tracks, with different types of obstacles, and a lot of game modes.