The factorys made some weird cars. A friend of mine bought new a 1970 SS Chevelle. It came with a 454 low HP and 3 on the tree. The dealer who ordered it forgot to check the box for a 4 speed. It is a rare cars for sure.
I'm going to bet only a handful of the 181 are still in stock form. Most of them either got "Duked" or had a big block dropped in. Hell, it might be the only one in existence.
Haha, if it wasn't a special order, some salesman probably got fired for ordering it. I bet it was 2 years old and they took a beating before it ever left the lot. Still cool in it's own way and a nice car.