Martinsh blog http://devlog-martinsh.blogspot.ru/?m=1 Marco Monster «Car physics for games» http://www.asawicki.info/Mirror/Car%20Physics%20for%20Games/Car%20Physics%20for%20Games.html Physics http://physics.info/drag/
Article about AI for computer driven opponents in Pure, ATV racing game. Outdated but may be interesting as principles. Press this link to go to source.