plural

Toyota Has Announced the Official Plural Form of the Word “Prius”
Toyota Has Announced the Official Plural Form of the Word “Prius”
Toyota Has Announced the Official Plural Form of the Word “Prius”
You're on the way to the raw food commune in your Prius.  And when you get to the parking lot, most people rode bicycles of course, but everyone who drove came in a Prius.  And you want to take a picture for your tweet about the Prius-filled lot. But you don't know the plural form of the word Priuses.  And that stops you.