I feel so vindicated! When i did community radio, i used to call-up car salespeople on the air and rib them about auto names,i.e. ask them: "What's the plural of Prius"? How many S es "esses" in that? The plural of Stratus is Stratusses? No? "I drive a Stratus, you drive a Stratus, we drive _________________? Strati? Stratusses?" etc. (one guy said "I drive a Prius, you drive a Prius, we drive Prius"!! I replied "oh! its like "fish"? I catch a fish, you catch a fish, we catch.....fish??" Today,I see an article that Prius is holding a contest to determine what is the plural of Prius!! Finally, my query got thru to upper management? Did enough people ask "what's the plural of Prius?" to where they decided they need an official answer?
Anyway, Ill try to keep track and let ya'll know what is the official plural of Prius!! Blows against the empire!