Surely, not any of us can afford buying a new car, there are many cases when we don’t even want one and opt for a used one. Gently used vehicles are an appealing alternative, and not the worst one. But while cars that plug in take only a small share of new-vehicle purchases today—about 1 percent—they're apparently very popular once they're used. In fact, electric and plug-in cars dominate the top 10 fastest-selling used vehicles. Six of the top 10 vehicles boast some sort of electrification, and two of those are purely electric. The fastest-selling used car is the Fiat 500e with its EPA-estimated 87-mile range. We've noted it in the past, but the latest study also mentions the 500e's incredibly low resale values—which likely help make the car a quick mover on used-car dealership lots.