Hey Morty,
I have the hard mag in front of me now. They didn't explain specifically this time, but I remeber in an old issue few years back the test was kind of explained in more details. I do have the fine print explaining the results, however.
Dry braking: was from 60 mph
Wet braking: was from 40 mph with ABS engaged
Handling: includes how well the tires gripped in an avoidance maneuver involving a swerve into the left lane and back into the right lane, dry and wet cornering grip, and subjective steering feel
Hydroplaning: how fast they drive in water before they lose contact with pavement
Rolling resistance: tested on a dynamometer.
Snow traction: reflects the distance the car needed to accelerate from 5 to 20 mpg on moderately packed snow
inc braking: on a rink, from 10 mph with ABS engaged
Ride and noise: onroad judgments
Tread life: indicator of wear potential on CR's 16000 miles mixed-driving test.
Hope that helps
Mp3butt