hello you, we have been in the family since 3 weeks a duster cdi with 105 ps with no all-wheels. ask! on the contireifen stands m+s. question 1 is that set for? question 2 you can actually drive with it in the snow carefully or you should buy the right wintereifen (then the others would be to sell) if the car is cold, the gas giving rings like if you had previously filled in a super car normal gasoline. that doesn’t sound healthy. did anyone ever have that? and you would make an oil change at 1500 km although it is not actually prescribed. I am surprised how good the car is. gruß frank