plural of Prius, because somehow, "Toyota sells one million Priuples" just doesn't jive. That's right, the Japanese automaker announced Wednesday that it has officially sold its one millionth Prius on American soil. It's reportedly also reached a couple of other sales milestones in the last six months, with worldwide Prius sales reaching two million in October and overall Toyota hybrid sales exceeding three million in March. Now that's a whole lot of Prii. Full PR after the break.