Good summary Chris. Anecdotes about winter tyres abound. I used to have a BMW 320 (2wd). On winters, it was certainly better on ice and in the snow than my Legacy on standard tyres ! However, when I fitted winters to the Legacy
Must now fit winters on the XV......just need to find a set of 16"/17" wheels at a reasonable price.
Oh, and I must source a space-saver spare as well.