There's climbing a hill and then there's climbing a mountain. In many driving situations i agree that it is fine to go down to zero ev range. I sometimes climb a mountain thats a 6% grade for more than 14 miles. And you can definitely tell the difference when i have no ev range left. Not always angry bees but ice revving high by design. Also reguarding hv charge mode: maby some of the techies can wiegh in. If my mpg drops 40ish to 28ish in hv mode, for say 26 miles on the freeway (60 mph for 26 min), but i gain about 25 miles hv range, my gross mpge would now be 28(hv charge mode) + the 25ev range i gained = 53. Not bad for a 4k pound car. In situations where i cant stop and charge that actually makes sense to use hv charge. Also since my charging at home is not free, usually about .10cents per kwh. Theres not much lost in terms of cost. Great dialogue. I appreciate everyone's perspective.