Seriously, what's the correct term? Priuses? Prii? Prius's? Priuseseseseses? It's like the old joke about the mongoose. As an old Latin scholar, I'm wonder if the plural of Prius should be Secundus. So what is it? Sorry if this has been asked about a bo-zillion times but I did search for "plural" and got no results.
I read: The Toyota executive in charge of the initial Prius rollout was asked how his people refer to more than one Prius. His response was "Prius". They use the same word for both. And since they named the vehicle, they are the ones that get the official say...
What do you call it if you have more than one of them? A Wegman's parking lot. (Thanks, I'm here all week. Try the veal.)