Autosocks are fantastic, amazing traction in snow and ice, quick to put on and take off. Good enough for those huge artic' trucks in Colorado(truck drivers were getting killed, due to the time it took to put chains on. Other drivers were wiping them out), so I'm sure they are good enough for a UK winter. I have a set for my wife's x-trail, we live very rurally at the top of a very steep 1.5 mile estate track, which at the moment has around 24"-30" of snow(now compacted). The x-trail with autosocks is managing the track no problem. The traction they provide is quite amazing. The second you're on a good surface take them off. Can't recommend them highly enough.
Have a look at the autosock website!