4. Morbidelli V8

Barber Museum Morbidelli V8

Perhaps best known for his factory-beating Grand Prix racing machines, in 1997 Giancarlo Morbidelli had dreams of building a production superbike. What’s more amazing is the choice of engine: a liquid-cooled, 32-valve, OHC, 847cc V-8. This is one of just four prototypes ever to exist.

On paper and in person, the V-8 “super” bike was more suited to touring duties, with its relatively upright position, quirky styling and shaft drive, but ultimately any aspirations for mass production were dashed when public interest in the bike was lackluster at best. The project was scrapped and Morbidelli has been relegated to its obscure position in moto history.