v0.2.0

This is a major step forwards in the direction I wanted this game to go: damage and the opportunity to swap parts!

Also, the password system is gone and everything will now be recorded in save files.
Unlocking the Countach and the motorcycle will take longer now since you have to complete all 5 races with one of the cars and you have to win at least 3 of them. The Countach is no longer upgraded (except for the weight reduction, but that also will be a selectable upgrade in the future) and the motorcycle now uses the more advanced physics.

Although I'm pretty pleased with the overall experience of this new update, I'm still going to tweak some stuff, like time limits. They should gradually become tighter as you car becomes faster, but I'd like to add more upgrades. The brakes don't have any upgrades yet and I'd like to add more categories, like the frame from Super Hang-On, which will act as a weight reduction.

Also, I'd like to give every car its own opponent, suited to its performance. And I'd like to get rid of the ridiculous rubber banding and calculate a more accurate max speed through the corners.

And of course, the new stages still need their own scenery and background.

If you encounter any bugs, please tell me!