This should be interesting. Another poster remarked "how are the die-hards gonna feel about Harleys being produced by the Germans?" How indeed. There is a big difference between foreign PARTS on a Harley, vs a foreign ENGINE. Porsche was forced into water cooling in order to extract more power from their engines, in order to be more competitive in the sports car market. Harley is under no such pressure, not being marketed as a performance brand. Is it strictly an emission (noise and exhaust) thing? Hmmm. Personally, I think the faithful will hate a water cooled Harley, for the same reason "New" Coke flopped. Also, I think it would be a big mistake to try and beat Ducati, Aprillia, et al at their own game. Look at how competitive the VR1000 ISN'T. If, by some miracle it is competitive, it will be because Porsche did ALL the engineering. Personally, I think a better choice for an engineering partnership would have been BMW. Unlike Porsche, they HAVE experience with the handling dynamics (engine cg,/placement) unique to motorcycles. We'll see....