@aybe : that is really cool.

C/C++ is always sort of "obfuscated" anyway (unlike C#/Java or more high level languages).
I think what happened is this : the game exe which is released for MAC OSX version is compiled in debug mode (by mistake probably or because MAC OS X C/C++ include that by default). This is probably what is used by IDA. or maybe RTTI is turned on (this is something similar to reflection in C#).

By looking at methods names it confirms one theory we discussed before : most objects around the track are animated done using custom, hardcoded methods (instead of being defined by data in PRM files).

EDIT : could you maybe post a full list of all methods (here or by PM?) thanks.