I was looking for a set of Winter Tyres for my car (2004 Vectra DTi) when I checked Kwik-Fit and found the Continental ContiWinterContact TS830 Winter Tyres 215/55/r16 fitted for £115 each at Kwik-Fit.
I have had to pay in full on-line in advance to get this price.
These tyres have good reviews and I can find them for about £150 each on-line.
The Kwik-Fit online tyre search is a bit fiddly, and if you dont find the right tyre at the first attempt then change the speed rating and try again.
If you finally get a search result that has check boxes for both Summer tyres and Winter tyres then un-check the summer tyres.
These tyres are made in widths 185 to 215, wheel sizes 15 and 16, profile 55 to 65 and speed ratings T, H & V only.