Off topic but sim related; where does ISI go wrong?

http://forum.rscnet.org/showthread.php?p=3646981#post3646981

They went wrong when they couldn't deliver a game that has proper online support without hours and hours of browsing through shitty mods.

Yours excluded of course, I still have rFactor installed.

ISI games like GTL feel great, but I always knew there's something wrong with the physics. Yea, tyres don't really act like they should. But theyre still ok... Still could be very much better with proper tyre-physics.

nice work there and just going by gut feeling they look rather wrong ... but what are they actually supposed to look like ?

Good job! This is what I've always wanted to know.

May I suggest you plot two 2-D plots: magnitude of lateral force, and magnitude of longitudinal force. Both plotted versus long. and lat. slip % (hence 2-d plot).

I have seen this kind of plot from the Forza physics Dr.'s webpage, and it's very communicative about force combining.