R172 What winter rim sizes are you driving?

Hello in the round, I had my flicker raise his summer rubbers yesterday on the 17′ available when buying and have now four Pirelli winter tyres with 2x7mm and 2x4mm residual profile left. What is the most unskillful doing with it? My tyre dealer of trust has presented me with two scenarios, as I want to buy 4 aluminiums next winter. 1) 17″ Buy aluminiums for my other tyres. Probably advantages with stuck snow covers. But more badly plows through mud. Lu This means that a Conti winter tire per Pneu costs 45 euros more than with 16″ note from me, I need fresh snow chains or starting aids again and calculate here with approx. 200 Euro 2) 16″ buy aluminiums and the 17″ Pneus for a handful of Euros once in autumn and in spring down. Unfortunately is very clumsy. But for 16″ I still have chains and the wheel box becomes more accessible. I drive a lot and the safety goes ahead. So far I had 16″ on my C class and ka Except for the one snowstorm Friday this winter, there had to be chains up and I didn’t get them mounted and removed in the wheel box. What are you driving and how satisfied are you with it?