AN actual race car driver describes how good the physics engine is in GT 5.
Some more about GT 6 and some comparisons to Computer Sims:
http://www.eurogamer.net/articles/2013- ... -6-preview
GT 6 came out in 2013... So this is even pretty dated compared to what will be coming out next.
Gran Turismo
Re: Gran Turismo
Turns out the physics engine is not the hard part of running a driving video game. The hard part is rendering models/lighting at 4K.