The SPO was a strada with a single seat and uprated suspension. I think that the SP spec' motors won't reach the emmision regulations thay have in the US.
SPO ................ "Sport Production Omologato" That's probably all that was needed before the racers started pouring great bucket fulls of petrol down it's throat with wild cam profiles Could you imagine riding a SP4 down the boulevard spitting fuel out of the open pipes