* Optimized frame rate and fixed minor stutters by changing the way physics work again
* Added leaderboards
* Added a boost mechanic
* Cleaned up the menus
* Added a "How to play" menu
* Added control settings
* Made turns sharper
* Made the built-in cars selectable
* Improved Realism environment
* Increased Arcade sky intensity
* Bunch of other small tweaks and fixes

Happy new year everyone!