I fitted 185/65R15 Continental Winter Contacts to my '95 Xantia 1.9TD back in 2010 when I was living in Ashbourne and working at JCB. TRANSFORMED the car in winter, and not just in snowy conditions. I'm sure I only paid about £60 a corner from kwik fit which seemed a bargain and I've not seen anything close to that price wise since. I chose them because I'm generally a fan of Conti tyres and have used them on push bikes, motorcycles and cars for years. I can't say I'd particularly choose kwik-fit, though in fairness they vary greatly from branch to branch. The Leamington Spa branch recently proved themselves clueless about jacking a Xant and declared that the suspension had broken when they couldn't get it to rise after putting the lever fully forward for reasons known only to themselves...
The following spring I fitted a secondhand set of C5 alloys with part-worn (205/60) summer tyres and left the winters on the OE steel rims. The winters went back on last winter, and following the demise of the TD (sad days

) the slightly undersized Conti winters have now gone onto my newly purchased Activa (which "should" run on 205/60s). It drives beautifully on them and sticks to cold wet roads road like glue, though the speedo is now even more optimistic.
I've also had good experience of Nokians whilst winter testing various vehicles (I play with prototypes for a living) and studded Nokians are often the tyre of choice for blatting around on frozen lakes in the north of Sweden or Finland at -25°C.