Hello! My SLK will be delivered at the end of March, beginning of April, and I will drive it all year round. Now winter and my question is addressed to all those who drive their SLK R172 now: How does it go with it in the cold season? – I was advised to carry something heavy in the trunk in winter. Do you really have to??? – And … is the roof tight??? (from which I go) – And …. rear wheel drive with such a small sports car in winter is also (Despite all the electronic driving aids?) Would I be glad if you could tell me a little something!