I'd like 17 in wheels instead of 18s

I'm contemplating a 228i, sportline, MT order. I've not had a good experience with ultra low profile wheels/tires in the past--bent a few. I saw a posting on the other 2-series website where the poster had already had to replace 2 front Pilot Super Sports and had bent wheels already in less than a year. He was from Mississippi and described really bad roads. Roads here in Boise area are not that bad, but not perfect. We will see some potholes soon. I'd really like to dispense with the trauma of ruining tires and wheels. I do grant that might not actually happen. I'm very doubtful that BMW would build a Sportline and then put the 17 inch wheel/tire package on there, but I'm going to ask when I get close to ordering. If I purchase this car, I do plan a 17 inch set for winter. This car would be my daily driver--looking for something sporty which handles nicely, but I don't track/race so I think for me 205/50/17 tires would be fine. I'm sure sure I would even notice much difference other than perhaps a bit better ride quality. Open to opinions.