[Tires & Wheels] Grip Control - any experience?

[3rensho]

About ESP - I'm the curious type and the last time the road up to our house was snowed and iced I drove up it twice. Once with the ESP switched off and once with it on. There was a noticeable improvement with it turned on - actually it runs automatically and the light in the display turns on (when engaged) and off (when not). I am using winter tires though not M&S. Too many negative comments on berlingo.org about performance with M&S as opposed to real winter tires.