I'm trying to figure out how GM measures cargo capacity. Is it the room in the back with the seats folded down or do they include ALL interior space...ie. passenger seat area, floor space for feet etc.

Thanks!

Krusty.

 

I believe height, length, and width. With the HHR I think they list with back seat up, back seat down, and passenger seat down.

 

Any idea on what the numbers are?