Tuckeroo's question was: "In what year did each of the Big Three automobile manufacturers have five (and only five) automobile brands apiece (excludes truck-only and non-U.S. brands). To show your work, name the 15 brands.
I can't answer that, but I can toss this one into the mix: What is the only model name to be used not only by all of the Big Three, but was also used by them at the same time! I'll give you one hint, if no one comes up with the answer in a week's time.
