This reminds me of a study they did in Japan in the 90's, a lot of JDM cars don't come with ABS as standard even when its standard on the export models. They don't seem to view it as importantly as we do. They did a test where they gave test subjects the non ABS car and tested their stopping distanced in everyday driving. Then they gave them the ABS one and retested and the results showed that stopping distances had been reduced. They then let them keep the cars for a week then retested them and they found that the stopping points had returned to the non ABS standard, the drivers had simply grown accustomed to the ABS and started braking later.
Source? I suggest this is BS, what I have seen is that JDM's usually do have ABS where the export ones get cut down. Just one example being my car, UK colts didn't have ABS until 2001 IIRC, the JDM models had standard ABS right from launch in 95.
