Great game, I thought it was pretty easy at first but the difficulty ramped up nicely as you go through the levels.
The main gameplay mechanic is very smooth and the drifting feels very satisfying. I thought that the ghost car was a nice touch too.
If I may give some criticism, I personally find the car noise a bit annoying after some time. I don't know if it would be possible to make it easier on the ear but that's just a minor inconvenience anyway.
Now back to getting 3 stars on all levels !