Great to see Sean on here again, fighting the corner of Euro double-deckers in general and Neoplans in particular. And teaching me a new word - 'allisions' - "The striking of a vessel against a fixed object". Good stuff!

By the way, my own all-time favourite bus is the Neoplan Jumbocruiser, which is an articulated double-decker (like an H5-60 but, dare I say, better), designed specifically to offer the same capacity and service of certain holiday airliner routes. There was a major accident involving one of those too, which was also blamed on 'instability' - but after rigorous investigations (and no-one does such things more rigorously than the Germans) their analysis showed that there was nothing wrong with the design of the vehicle - but that the regular bus drivers required more training to properly handle them.
Jeremy