[basjoos]

What's the max speed where it will still maintain SHM? With the 09, SHM was maxing out at about 50 to perhaps 55mph.

Based on the 49mpg on a 65mph interstate cruise, and 70-80mpg in SHM, the 2010 Prius still falls short of my car's mileage at normal highway speeds. Looks like I'll still be waiting for a new 4-seat car to come along that can match or exceed my 18 year old non-hybrid car's highway mileage. Perhaps the Aptera Typ-4h, whenever it makes it off the drawing board and into production.