It's a fun game. A complaint of mine though is that the outcome is incredibly random. For instance: I tried several times to get to the 4,000 meter mark and the 10 coins in one run. On the last attempt I got to 12,063 meters and 25 coins, ridiculously over target. Even in the earlier stages this plays a role. There is no good way to launch the car, sometimes it jumps well, sometimes it bounces around. Barrels will sometimes launch you at breakneck speeds, sometimes stop you. On top of that the player actually has very little control over the car. Some of these games give you a gun to shoot your character back in the air, others give you some kind of boosts, this being a car game could at the very least give the player the back and forward keys for balancing the suspension on top of the acceleration key.
The camera is also a bit buggy. If you drop on some explosives right after launch the camera keeps following the car instead of running along the ground. I feel like the game would be more fun if it always did that, at least you get to see the action.
Overall it's definitely not a bad game, but not the best of the best either. Keep going though, you'll get there. Perhaps take a bit more time for the next game?