I drive in the winter when there is no salt on the road and I don't have a roof or sidescreens. Back in the early 90s drove back in April from Kitzbuhel Austria to Cambridge in the day. Left at 07.00 and it was -8C, tonneau covered in snow and frozen rigid. Frozen cheeks early on and made it back to my local in time for a pint. 850 miles, 15 hours.