Now that Nissan is totally screwing early Leaf order-placers, treating us like mushrooms, giving me a July delivery estimate, which is six months later than originally promised, and 4 months later than people who ordered three months after I did but already have their cars, and giving me nothing but lies and contradictory statements, I am interested in getting some real-world numbers about the Plug-in-Prius (PiP). In particular, what will be the mpg on long highway trips at 65 mph, after the grid charge is depleted? My principal driving in my 2004 Prius is for my hiking trips to Canada, about 6 to 7 hours of driving each way. If it's better than my 2004 Prius (around 51 mpg) I'd consider trading up. If it's not better, there would be no point for me. My Zap Xebra pure EV already goes more than twice the distance of the PiP's EV range, though the Xebra has a top speed of about 35 mph and is kind of sluggish getting there. Second, after the grid charge is depleted and the car reverts to normal HSD operation, will the additional batteries be used or not? In mountainous terrain, it is very helpful to have added battery capacity for regen on the long downhill stretches. If the additional batteries are not used in HSD mode, then they are just dead weight for most of the trip. I'll forgive that if the overall highway mpg is better than my 2004, but if it's not, I'd consider the design badly flawed, since I see no reason not to make use of that battery capacity. I recall, way back at the beginning, the first folks to install added battery capacity, even without grid charging, observed improved mpg. Cost was a factor, explaining why Toyota chose the battery size it did, but with the PiP having a bigger battery, it would be incomprehensible not to use it. Does anybody know if it does? Does anybody know the highway mpg AFTER the grid charge is depleted?