Car and Driver looks at the physical numbers behind the device: in a 40g head-on collision, a HANS device can reduce total neck load by about 75 percent, to less than half the force of the injury ...

And the 20 years that have passed since have made Jim Downing, one of the inventors of the HANS Device, much more bullish in that assertion. "There were times back when I was 60% to 70% sure the ...