Hamish, thanks for the info, very helpful. The CVT model is not available in the U.S. currently, it's a conventional 5 speed auto instead. That, and the fact that the posted speeds are higher here (both officially and in terms of the way people drive), might explain a lot of the difference people are seeing between advertised and actual mileage. Throughout New England, for example, it's very rare to see people driving at or below the speed limit, which is 65 miles an hour on most highways. So (completely anecdotally) I'd guess that the majority of people over here are averaging highway speeds of 70 miles an hour or more which would lower their fuel economy.