I bent a rim and when buying a new one, I bought the wrong size (long story). They came off the same year, make and base model as my car. My car has p215/50r17 and the two that I bought are p205/55r16. I was wondering if it would do any damage to run both sizes (r16s in front, r17s in rear)? It would only be until I can get the right rim. I average less than 20 miles driving a day.