Needs some work.
I thought the game started alright. It seemed too easy to bottom the car out off a hill and lose a life. The one thing that ruined the game was the stupid bridges. 13 lives lost to them. Also had the same problem as JonFawkes, the lean buttons don't work effectively. Showed promise, but too many little issues.
But needs alot of work. For example, it's too easy to lose trucks on the courses and some slopes are too steep to climb up. I lost 12 trucks on the first level and the rest on the second, you need to put more work into this for it to be perfect.
Decent graphics, that's it
What's the point of having all of the different parts available when you can select the best one right at the beginning? What's the point of more traction if it doesn't even make a difference? What's the point of having a "lean forward/backward" button when they don't even work correctly. This is a good start, but there are way too many things to work on before it even gets a decent score.