Although there are many details that are new in Gran Turismo 5: Prologue Spec II game (available in the eight update in Official Thread https://www.gtplanet.net/forum/showthread.php?t=103447)- while "Spec II" is something that title will get after the PAL (US) game come through mandatory update - detail I've put in the thread title is far the most important physics upgrade so far in the series IMHO. So, as it says - ABS is R.I.P. Tires/wheels are FINALLY having 100% lock-up when braking and the game is feeling as it have always should in that department. It's drastic difference compared to all other previous games, as well as all other GT5 releases. ABS-0 makes drastic lock-out of wheels if brakes are applied too hard in both physics modes - Standard and especially Professional - thus making a car control a brand new challenge for GT series. Thank you Polyphony Digital, this has been very welcomed. Although it is not possible to determine mandatory non-usage of ABS for other cars, I see this a very important issue in future Private Races, as well in other similar circumstances. Notice that ABS will come adjusted to 1 in QTS menu, and switching it off unleashes the new physics model in full glory. It has been a 10-year wait, and now it's over. Rest in Peace dear ABS, it was nice knowing you.