Hi,
I used to live in the highest village in Scotland for many years,
driving an A4 FWD, we had some very bad snowfalls, I always
had 2 spare wheels fitted with winter tyres, which I fitted to the
front about November time, I found that with these tyres on, the
car would go through very deep snow without a problem,
believe me, they are well worth the extra expense.
hope this helps
Brian.