They (and I, when I borrowed it for a week) were getting over 40mpg.
The regular Camrys get that? I’ve read they’re usually in the upper 20s/low 30s.
You can drive a 4 banger camry too and get around that. Lots of new cars will achieve that with no batteries. I think my folks got a bit extra for a bit, but now the car is a couple years old and the gasoline engine kicks in immediately, it barely uses batteries. The constant stopping and starting of the engine uses gasoline too.
It’s a big joke, and it’s on us. Of course after a certain time, you’ll have to replace all those batteries, and that’s expensive and not every environmentally friendly heh.