Under the heading "Attention scrappers," the purported vendor wrote: "I have a rusty old Mercedes to get rid of. No engine, Has doors that open to the top. Glass is good."
And just to make sure his ad got noticed, the prankster tossed in a photo of the Cuban Gullwing taken several years ago by British writer Michael E. Ware.
Though taken down almost immediately, the listing still caught the attention of BarnFinds.com, which looked at the offer with equal parts suspicion and wistfulness. "If this is the real deal, it would be the find of the century!" said the website.
Sorry, BarnFinds, but you were right to be sceptical.
• According to a post I read on a forum (sorry, but I've lost the link), someone inspected the Cuban Gullwing and reported that it has been stripped of all its manufacturer's identification numbers. If that's true, it means there could be a bogus 300SL out there somewhere, assembled from spare parts and fabricated bits and registered under the Cuban car's VIN. I bet it's in New Hampshire.