Got my Cooper rims installed yesterday. Found some 56mm Mitsubishi center cap overlays that match up perfectly.
https://rover.ebay.com/rover/0/0/0?m...2F183025425113
http://mirageforum.com/forum/attachm...4&d=1517728360
http://mirageforum.com/forum/attachm...3&d=1517728360
http://mirageforum.com/forum/attachm...6&d=1517790181
http://mirageforum.com/forum/attachm...5&d=1517790181
I love how they look. Currently there's 175/65-15 mounted, but I have a new set of 175/55-15 Federal Formoza AZ01 being delivered tomorrow that I'll mount up. I'll update with my perceptions of them and if any mpg change. I'm very happy with my purchase!