Friday morning 7am, ice and snow on road. Very dangerous road conditions near to me and even the diesel astra required very smooth clutch work (with no throttle) to avoid wheel spinning.
Anyway, some chap in an MGF seemed to build up reasonable amounts of speed heading onto and around a huge roundabout near me where the ice has melted....he passes me on the inside of this roundabout to head into the outside lane of the same stretch of dual carriageway as I am heading for. Next thing he has done a 180 entering the dual carriageway, drifted across my lane and off the road to my left....he was driving too fast for the conditions, no doubt.
Next I'm on the motorway doing 40-45, only the inside lane has tyre tracks; the middle lane had approx 2-3" of snow in it (visible where the odd person has somehow gone across to the central reservation!!). Anyway - five minutes later an old white Subaru Estate screams past at about 70-80. He may well have ample grip to put power down but he would not stop any quicker than me in those conditions. If one of the 40mph cars in the inside lane happened to pull out to the middle lane there could have been bedlum.
I would agree that there are quite a lot of people who misjudge braking distances and sensible cornering speeds in this weather.
Editted to add main "road hates": Middle lane drivers, fog lights when there's no fog, people who park across two or more carpark spaces.