I bought some aftermarket rims for my car. I have a mercedes benz 560 sel. The rims I bought are 16"rims. I would like to know the tire sizes that fit with this rim. The person that i purchased these from had them on a 560 sec. He sent two tires- P205 50 16's. I need two more. Does it matter if all four are made by the same manufacturer. will these tires work on my car-4 (set) Falken 215/60/15 New Tires Performance Tires?