There's a female aircraft mechanic of my acquaintance who runs in life with a Ford Escort into which she's shoehorned a V-8 Ford 60 flathead engine. My references to her *Escort Service* generally go unappreciated, but I bet she'd be an interesting surprise to your neighbor in the BMW-7mobile.
I believe if I were so inclined to build up such a *sleeper*, I'd begin with a Yugo, myself. But I more generally run through life on two cylinders, rather than four or more.
