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Ok on my new (to me) 99, there is an extra control called VSC but I'm not sure what it does over an above traction control, which I understand. Nothing much about the vsc in my user manual, other than 'stability'.
Similar to what is shown in the video, take your car to a large empty parking lot on a rainy day and drive it in a tight circle until you "lose control" -- except that you probably won't since VSC will "save" you. It's pretty incredible.
You need good tires to get the most out of VSC - especially in winter where it works best with true winter tires (mountain/snowflake symbol on tire sidewalls).