Buck Cooper Motors is a right at the intersection where Two Notch and Shakespeare flat-iron into each other and is actually a tiny little lot for a used car place. I've noticed for a while now that there were no cars on the premises. I stopped by a couple of weeks ago, and there was a sign on the door to the effect that all cars had been moved to another Buck Cooper location. That sign seemed to be gone when I went back by today.
UPDATE 17 Feb 2011: Added Phillips 66 to the post title based on the comments.
UPDATE 9 April 2011 -- It's now Classic Auto, tinting and carwash: