Good article. I don't
Good article. I don't believe you can compare the two. The Volt engine doesn't come on at high speeds unless the initial battery charge is depleted. The battery pack is also 16 KW not 15 KW. The Plug-in Prius, Ford Plug-in and the Accord Plug-in have the issue of small battery range and the engine's coming on at highway speeds. The Volt is an EREV while the other's are Plug-in Hybrids. I've driven 4,400 miles in my Volt on 7.7 gallons, 95% in pure EV mode. You can't do that in these plug-ins.
MrEnergyCzar