this is, actually, against any real life observations any other 2007 TCH owner has. and I live in Seattle, and can tell you right now, that car does OK in heavy traffic only for 15-20 minutes, as that's how long charge lasts, and thereafter you are running on ICE full steam, recharging it. And driving in Seattle city traffic kills mpg real bad.
Also, that car mpg drops down BAD at any speed above 55mph. Or in temperatures below 55 degrees.
Unless, of course, you weigh only 120 lbs, as I weigh 275 and those 200 lbs difference do count.