What people continue to ignore when throwing out the 'diesel hybrid for the U.S. market’ option is that under EPA Tier 2 Bin 5, NOX levels have to meet 0.07 g/mile, or about 6x lower than the current Euro 5 emission standard. While Daimler-Benz and Honda do have technologies to meet the Tier 2 Bin 5 standard, it will undoubtedly come at an increased cost relative to a typical Euro diesel. So, will people be willing to pay both a hybrid premium AND a U.S. diesel premium? If naysayers are already discounting the fuel savings of the current crop of hybrids, they will have a field day with diesel hybrids. So I don't see diesel hybrids as a viable option for the U.S. market. Besides, the Tier 2 Bin 5 compliant diesel Accord that Honda is currently testing is rumored to already get 60+ mpg. Why add cost by making it a hybrid?