I work in the industry and always thought iRacing model was the most detailed but wanted to know if someone knew a better model. It's a shame they don't licens

I work in the industry and always thought iRacing model was the most detailed but wanted to know if someone knew a better model. It's a shame they don't license their models for engineering customers (like rFactor does), since it's a single made-up parameter set tuned to make things feel "real".