While most of us would drive in EV mode, cooler temperatures now mean I have a higher chance of running out of juice. I’m still convinced the Prime does better than the Prius in HV mode. Heres a segment with a short highway stint (70-80km/h) but otherwise mostly city speeds. Rolling terrain. The highway stint included a bridge crossing (up and over rather than a level crossing) Full disclosure, there was another segment in HV mode that included an uphill segment and that trip ended at 4.6L/100km. Even then, the total between the two trips is significantly better than what I could achieve even with the Gen 3.