I kind of like the new physics better because everyone knows that, in real life, if you abuse the tires grip limit they will whine until they're gone. Before, I was quicker, but moments were way far unpredictable.
I think there should be an arcade physics model for an arcade mode for those who love it and a simulation physics model for simulation mode.
For sports mode, there should be arcade lobbies and simulation lobbies, I think everyone would be happy.
Also, IMO, Sophy is just a gimmick and a marketing stunt. PD should use AI programming for improving the penalty system. AI stewards would be more useful for players than unbearable (edit: I meant unbeatable, but that works as well) racers..