Hello Vespa species, my daughter wants a 50’s Vespa. In my search I have noticed that there are countless models of it. Rollers are not my area. Can someone explain to me the different types briefly, e.g. 50 N, 50 N -S, V 50, PK 50, PK 50 Special, PK 50 XL, I don’t look through, I googled naturally, but the result didn’t make me smarter. Greeting and thank Jan.