Winter Tyres on the Cage

[BIG MAC]

I own a BMW 320dse and vote it the most treacherous thing on snow ever invented..However I took the Bridgestone Potenza runflats off it in the spring and put on Kumho Ecsta runflats...so far there is no appreciable difference except the sidewall construction allows for some flex which means the ride doesn't knock your fillings out...Maybe they will be better in snow...I am hoping however tgat we don't see much snow this year