It's a great honor to have you drop by sir. Actually the vibration you feel from the brake pedal is due to the rapid pulsation of the brake fluid by the Hydraulic modulator. Its like the system kicking you out and taking control by applying the brakes itself, but the frequency which can be around 20 times per second is the reason for the vibration. Perhaps it's not a disadvantage afterall, but instead a strange feeling.

About your car, I am not so sure why Toyota didn't install it. Probably it wasn't planned at the preliminary stages of the production of the vehicle, but subsequent models are equipped with ABS.

Thanks for being here again and for the regular support.