When you said xA I'm guessing you actually mean it was a Scion xD, as the xA hasn't been built since 2006. And yes, you were most definately downgraded. The Scion xA is classified as a subcompact and runs on the same platform as the Toyota Yaris. Hertz can call it whatever they want but it's not a midsize car or larger. They probably figure since it's a "unique" car people won't complain. It's the same way that people booking fullsizes get "upgraded" to PT Cruisers since it's a "specialty" car.