Appologies, but my question is a bit general. I'm working on a completely over the top racing game, involving extremely high speeds, between 200mph - 1500mph and above. ( it is heavily inspired by the F-zero series, as well as the anime movie Redline ) Since we are really pushing this as far over the top as we can take it, I would like to pull in some real world physics where possible. For example, after a certain speed, air friction alone becomes enough to ignite an object. What type of physics based considerations would you recoment taking into account? I'm not looking for specific formulas or anything, just any thoughts that might be relavent, or worth considering. Thanks!