Totally different architecture and Polyphony wanted a clean cut, a true next gen racer. I doubt anyone on PS4 would’ve been contend with PS2 models and trashy vacuum cleaner sounds.
one and done.
Bet with Intrinsic:
The Switch will outsell 3DS (based on VGchartz numbers), according to me, while Intrinsic thinks the opposite will hold true. One month avatar control for the loser's avatar.