Of course, in days to come, GT5's physics will be analyzed as no driving-game physics ever was. I expect many criticism, searching for flaws, comparisment with "this game" or "that game", but I have strong impression that physics in GT5 is the most refined physics ever introduced in virtual world - as long as "physics" is determined by the feel of actual driving, feel of tires, feel of suspension, weight transfer, engine momentum and actual feel of steering. Sense of speed, grip, weight and car-performance is just logical and natural - and that is what matters most.
I tried to drive without ABS on both stock cars mentioned above, but even G25 pedals are not up to that task Although overall effect of non-ABS braking is more refined than in Prologue, brakes needs to be approached with great attention. Actual tire-lock is easy to be done and I really have no idea how will users of DFGT/DFP drive without ABS if wanted . Watching braking without ABS in replays finally looks logical and natural and later afternoon I'll be doing much more research in that particular field. On the other side, driving a Castrol Supra on R1 without ABS was totally different from stock-cars, I could tackle braking more efficiently and I presume that mechanical setting (tire compound, suspension, brake power distribution) have lot to do with the overall immersion of the non-ABS braking.