AutoSock for Snow
Came across this from The Roof Box Comany's tweet on #UkSnowMap
Just tweet on TRBC tweet
and they will enter you...
Their own website has an old competition which ended on 19th Dec 2016
See details here http://www.roofbox.co.uk/autosock-competition-14/
But I guess as this is their fresh Tweet today(12th Jan) it should be new.