I have the proper physics for it (would need a bit of updating to my current standards but most of it is there)...just don't have a proper model for it. What @Giovaneveterano posted looks like the PCARS model.
Yeah I'd trust your physics over mine any day The ones I did for this was not really based on reality, just something to bring it in line with the rest of the GT3 class, as the original was miles off.
It wasn't really for public consumption, just for when we were running it in a league.
And yes, the model needs a ton of work anyway, I'd personally just start again.