I'm a fan of weird engine designs, much to the chagrin of my wife. I say this, as I once played host to a Volkswagen Passat W8, which was powered by a halved Bugatti Veyron engine and stuck into a pedestrian sedan by the madman that was Ferdinand Piech. That car cost me $10,000 to buy, and then another $9,000 in fixes over the roughly eight months of ownership.
It's also the only thing that ever caused my wife to threaten divorce, a sticking point she continually threatens whenever anyone mentions a W8 or sends me a listing for one for sale. Because while the car was a lemon, I still sorta loved it. At least when it worked, which was maybe a week out of those eight months.
Why am I pontificating on the oddity that was the Passat W8? Well, because MV Agusta just quietly debuted a new concept engine at EICMA, and it's one of the wildest things that the show's produced, even if MV Agusta doesn't yet want to give us any details. But what I can tell you is that it's a 5-cylinder engine that's shaped like a square.