Once you get a taste of EV, you want more, more range, etc. My commute is 17 miles each way, 34 round trip. If I can't plugin, then a 35-40 mile EV range would be handy, wouldn't it? The ideal PHEV would have 25-40 miles of EV range, and get 45-50mpg when that AER is gone. May not be possible with todays battery technolgy, but a vehicle like that, many would not even consider a full EV, as this would fit most people just fine, and allow most of their commute and local trips to be all electric, without any range anxiety of running out of juice. BTW, the only advantage to the Volt is this very thing, 35-50 AER, depending upon tempature, speed, and many other factors.