Comment Not surprising (Score 1) 82
In many ways, a plug-in hybrid is the worst of both worlds. When running on gasoline, it's less efficient than a normal hybrid vehicle because it's hauling around the extra weight of an unused larger battery. When running on electricity, it's less efficient than a full electric vehicle because it's hauling around the extra weight of an unused internal combustion engine and fuel tank.
However, when it comes to vehicles, many people are oddly willing to put up with a lot of inefficiencies in the name of occasional convenience or peace-of-mind. How many people drive a pickup with a huge cargo bed that only gets used a couple times a year?