for my part I prefer the gp4tweaker tool ... when i compiled a 2012 MOD for testing with my physics i went through some difficulties in adjusting certain cars. even got to import / delete certain parts of shapes ... I think it looks good
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RELEASE => Physics (under FIA Technical Regulations)
MagicDatas? Setups? Pit Stop Strategies? Track Specific Performances? Up2Date GP?
Power Torque Curve? Where's this stuff? All download is available at ..