We just bought a set of used aftermarket BMW rims with 245/50/R18 Yokahama W Drive tires on them. The rims and tires are like new! Unfortunately, we did our homework on tire size but not on rim compatibility. They are off of a 7 series. We will check with our tire guy this week to see if they will work. We are keeping our fingers and toes crossed!
Worst case scenario, we bought them for a good price so hopefully we can flip them if we need to.