I followed a BMW through Headingley with about an inch of snow on the deck a few years ago. Up the hill between the city centre, past the University, he was sideways one way, then the other, crabbing his way up and throwing 2 plumes of snow across the road. Like your companions, I gave him *plenty* of room.Many years ago I had an Mk2 MR2. One day there was snow and I was returning from Bournemouth along the A31. After a while, I had a short parade of front-wheel drive cars behind me. When the road widened to two lanes they thought that they would go past. Unfortunately at that point it also went downhill and I gently dabbed the brakes. The rear went out and I slid perfectly down the hill using both lanes. They backed well off. I did pull over just after that though to let them pass.