I've also gotten the "Monte" comments a time or two. As said chances are the ones with the "Monte" comments don't know their cars all that well and confuse a MCSS with a GN...well both did come in black with blacked trim, only the trained eye can differentiate.
Then again I've had people call my Chevelle a Nova and my Nova a Chevelle. And I've seen people confuse the older box style Chevy II's for Falcons. I even had some hoodrats walking past my house once and saw my grandma n/a V6 brown Regal sitting out...I overheard one say to the other "yo dawg he gawt a Cutty"