Well, I said that based on reports of what a few people on here have achieved, and what a few car magazines have managed to get in the two vehicles driven on the same roads simulatenously. I also said close, as the difference between say 38-40 and 42-44 with similar topography as CGameProgrammer and Myself. The Camry Motor might actually do better in the smaller Civic chassis, but that's pure speculation. The reasons those are of interest is that those people, and those magazines, have driven on many of the exact roads that I do, so it's a useful point of reference for me personally. While efficient cars with small engines like the HCH do well on the EPA test, with flat and slow drives, they fall off sharply when introducing fast speeds, steep hills, or a combination of both. The extra weight will definitely hurt the Camry climbing the hills, but the improved hybrid system I expect will be able to recoup a lot more of that on the way down than the smaller IMA motor which maxes out charging fairly early.