Confused!
I think you are referring to the Mugen Vincent engine, this was built by Soichiro Honda's son Hirotoshi Honda, he owns the Mugen company, they manufacture and tune engines for motorsport from F1 down to 10th scale ic engined model carsThe Honda one! That will be the one I saw when I was over there. Looked o.k to me. I'm sure someone told me that Phil Irving's son had something to do with it but that could just be a load of sh*te.