Before the board went down over Xmas, someone mentioned a product called Autosock. It consists of a fabric cover that is placed over the two driving wheels of a car to get additional grip in the snow.
It is a Norwegian product and the website makes it look very convincing!
http://www.roofbox.co.uk/autosock/
Does anyone have experience with these? If they work as they say, then they could be very useful to keep in the boot. I haven't tried my Z3 in snow yet, but judging by previous experience with BMWs it could be a bit of a challange!
Russell