Enjoyed.
When you start a new game you say in your piece of script "You have decided to drive like a mad man without attempting to slow down, because quite frankly living isn't worth it" but you then say "Try not to hit obstacles on the road: they will slow you down or even kill you", point being you make it sound like the character wants to die as s/he is the only one left but then the point of the game is to complete roads without dying. This story is contradicting and should be worked out.
You also say that after acquiring a gold medal you will be able to upgrade your vehicle yet I was unable to find this feature?
The graphics are done very well and suit the game perfectly, I also really enjoyed the music - Could listen to that without having to play the game. Sound effects were realistic which was a good contributer and the gameplay is very smooth. Only problem I have with the game itself is the way you slow back down after your speed boost is over, the game is too slow to have any real difficulty.
All in all a good game to play but could do with a little touching up here and there.
Keep up the good work.