I've just, today got two new vredestien winters fitted to the rear of my 2wd karoq to match the front tyres which have done not many miles. When I bought the car 6 months ago it came with two Bridgestones in the standard 215/50×18 with about 5mm tread, one Bridgestone on 3mm and a brand new budget unknown on te front. I removed all 4 wheels and fitted the wheels and tyres I had on my previous yeti, which are shod with kormoran summer 235/50×18 which are decent tyres. The standard karoq alloys I fitted the vredestien winters, which were part works from a trusted source, a good mate that had used them one winter doing only 2000 miles.
So about a month ago I fitted the standard wheels with winter front and summers on the rear. I have had this many times in the past without any problems, although I know its not recommended. Then 3 days ago the snow arrived. I found the car nearly undrivable, good traction at the front but the back slipping and sliding all over the place. So bit the bullet and ordered two identical vredestien winters. Fitted this morning, the side streets around here are all still white, hard packed snow. Huge difference in the car. Still not as sure-footed as my previous yeti, but it was 4wd, this koroq is not.
I will be swapping back to the other wheels in the spring as I prefer the look of them, they are a genuine vag wheel in gloss black. But the moral of my tale is now I say do not mix two different types of tyer on the car. Either 4 summers, 4 winters or 4 all seasons. If changing summers to winters and vice versa it's good to have two sets of wheels, or use all seasons all year long. I now have 2 half worn and one nearly done Bridgestones and one unknown budget only done 50 miles in the shed which I probably will never use. I will probably sell them, someone will take then to get an mot or sell on a car, or use themselves.