That’s the story of this 1957 Chevrolet El Morocco ... With only 10 known models in existence, this El Morocco Convertible is as elusive as a poker-faced bluff in a high-stakes game.

A 1-of-10 Chevrolet El Morocco convertible is heading to auction on May 17 in Indianapolis, with no reserve price or estimate from the auction house. That means that almost anything could happen ...