Winter Tyres Rear Only

Given that my plan was to use the oems for summer csls for winter each year i got thinking about winter tyres vred wintracs particularly.
Winter tyres rear only. Whats the best winter tyre. And i think 2 winter tyres instead of summers on the rear is better than 4 summers but i really. I should perhaps add that this snow tyres argument would only apply to rear wheel drive vehicles front wheel drive vehicles have to shod with winter tyres all round not from the aforementioned stability point of view which still applies but because having only winter tyres on the rear means the traction advantage is of course lost. Fitting two winter tyres to the rear will see your vehicle veer off course.
Just what are the facts surrounding winter tyres though and is it worth owning a set here in the uk. As there is still a fair bit of life left in the fronts i was thinking about getting a set of winter tyres for the rear then replace the fronts when they need doing. If you fit winter tyres to the front only you will find the car wanting to swap ends especially down a. If youre still not convinced this video from michelin illustrates the dangers of not fitting a full set of winter tyres.
My profile my preferences my mates. Winter all season and summer tyres explained and recommended. We did a test to see the difference of putting 2 winter tyres vs 4 winter tyres to a car. Z4 winter tyres on rears only ok.
Cars and tyres are much more sophisticated than they used to be. 1975 ford consul 2000l one of only 12. Looking for advice on winter tyres can i fit them on the rear of my clk 220 only or do i have to have them on each corner. Should i buy winter tyres.
The handbook say winter tyre are on alloys could you put them on steels if you could buy them. Find out what happens when you drive on ice in swedentyre advice between 2 winter tires or 4 winter tires. If you only have 2 winter tires should they go on the back or front.