Rims for Seat Ibiza 6L – built in 2008!

Hello, I bought a new Seat Ibiza 6L (not the whole new model) this year. On this Ibiza were standard steel rims with wheel caps on it. These tires have the size 195/55 R15 85V(which means the 85V I would like to know). In my registration certificate part I is under points 15.1 and 15.2(maturation) but only 165/70 R14 81T. What exactly does that mean if it is in the papers? I already have the larger tires from the dealer f. So I would like to know from you which tyres I can drive all in the summer.. can I also drive 205 or even 215er? And how much inches can I have maximum? I would like to get black lowbed rims for the summer (could you recommend your suitable ones?). Now I have the question how to do this best if I want to drive aluminium rims next summer. I need for the winter but still winter tires. My idea was now I drive in the winter to a tyre dealer, let e from the current steel rims put down the summer tires and winter tires on it (here is the question if I should also drive the 195/55 R15 winter tires). And as soon as the sun shines again I wanted to get aluminium rims and put my summer tires on it again from this year. If it is not possible with the winter tires, so that I can not drive 195 winter tires, then I would do it so that I get winter tires on steel rims and then in the summer 205 b Two 215 rims + tires pick up and in spring sell my old summer tires with steel rims. I ask you to inform me about this and help me. I know relatively little about it. If a question seems ridiculous please take it seriously, because I have asked really only serious questions here. So first of all I would like to have explained which tire sizes or rim sizes I can drive in summer and winter at all..! Thank you for your help in advance! MfG L ars! PS: That’s how I like rims. This is not a low-bed rim but it looks good too! I don’t know the price of this rim now, but it will be too much for me. I just want to show which direction my taste goes. I imagine a price between 100-130€ per rim. Maybe one or the other has a dealer he can recommend to me. Best with a huge selection !- Rim picture – KLICK –