^ Not me. I have yet to see an IB M3 in the DFW area.
I do remember my wife telling me that she had seen the exact same e90 IB m3 in Plano a month ago, but I was really shocked since that would be really rare. Maybe it's the same one you've been seeing...
btw, I spotted a AW e92 m3 w/carbon fiber roof, parked at the Costco location off of Park & Dallas North Tollway.