Re: Most Versatile & Successful Engine...EVER
..what about the awful VW Boxer? In sheer volume terms it must be one of the few engines that could give the small block series a run for its money. Truly versatile? Hmm in terms of body designs, we might get away with it if you think about how many buggies, specials and kit cars using VW's simple chassis and of course the air-cooling helping make a kit easier to build, so much less plumbing!
Not really viable as a powerboat engine for off shore racing like a grumbly V8,...can you imagine the looks on peoples faces if you turned up on Lake Garda witha fine looking Mahogony/Chrome Riva/Chris-Craft lookalike that then sounded like a beetle. The locals and the tourists would all choke on their espressos!
..that said, I'll bet there are 2 wheelers and 3 wheelers running VW power (all those dreadful trikes that emerge here in Germany in the summer, soo lustig,) just like our friend the Chevy in the Boss Hoss on 2 wheels and numerous mad US custom trikes, and the lack of cooling water to freeze probably means that there are some nutty cold weather applications out there that we don't know about, generator sets, who knows... I speculate here.