That included mine. She has very big "booty" wearing 275's as well. boy she has nice rear end. I do agree Doug on this matter. It is more likely the installer's lack of experience. 17x9 should accomodate your tire size with No problem. It is just bit tricky for those small local tire guys because BMW wheels comes with safety feautre that allows tire to stay in side the wheels. And that little bend inside the wheels band makes it litle tougher for them to mount the tires. And this is where they make a mistake. They force it!! Tell them patience is a virtue.