What happens to plug-in hybrids over time? Take our Twitter poll

2017 Toyota Prius Prime PremiumLast week, for the first time, we reminded regular readers about our regular Twitter poll in an article announcing the question of the week. That article seems to have earned us about three times as many responses as in previous polls, so we're going to make it a regular practice henceforth. This week, the question has to do with plug-in hybrids...