I don't know what it is about Mercedes but they are as much use as a chocolate teapot in the slightest bit of snow, it can't just be that they're rear wheel drive and heavy, can it?
Best 2WD car I ever drove in snow/ice conditions was my aged Citroen 2CV. Low power, narrow tyres and compliant suspension. However, tlLB's Fiat Panda is fairly impressive in the snow, albeit we have not had much down here in recent years.
Beware wide tyres and too much power.
