#BuickGnx

If you were looking for at least one wild-ass auto show rumor to see you through the weekend, look no further: Bloomberg (via AutoGuide) is reporting that Buick may show “a sporty coupe concept” this weekend prior to the opening of the North American International Auto Show in Detroit on Monday.

The sports car, reported to be “about the size of the Chevrolet Camaro,” is expected to debut Sunday night. AutoGuide is now speculating that model will be called — drum roll, please — Grand National!

A story on GM Inside News reported on GM’s trademarking of the “GNX” and “Grand National” nameplates. Let’s see how far the blogosphere can spin this one.