20. Toyota Prius
What it is: The car that ate the whole hybrid market
Complex Says: By the time the second generation Prius came out, it was clear that hybrid cars were going to be a big thing. What very few would have projected was how wildly successful the new Prius would be. It got to the point that people didn't talk about hybrid cars anymore, they spoke of Priuses (Priusees? Prii? Priusides?).