I agree. I remember early on with the gen 2 prius and gen 1 insight they were always holding up traffic going 45 in the center lane of the highway with a 65mph limit.
Then with the release of the prius 3 that changed. Ive driven a prius 3 like i stole it and still managed 49.9 mpg. The gen 2 insight I own ranges from 52 to 47 depending on the weather.
Sure if I go slower it gets even more, but there is also a value to time and going 5-15 over the speed limit really adds up on a long commute. At that you are still sending out less pollutants than the other cars is icing on the cake.
