Ignore those people.
The EM1 is a chassis. Not a car. They're all still Civics.
Just some people think it sounds cooler to refer to things by it's skeleton. Next time they talk like that, call them "bones" Refer to your desk as "wood", etc.
Sounds dumb, doesn't it? And yet...they continue.
Edit: Yes, they're all the same, just called EM1 for the sake of sounding interesting.