Never measured it, but that looks very close to my Sonic's hatch area. Leaving the hatch floor out makes a noticeable increase in what can put in the back, below the seat top.
Just as an update, I really love the Bolt. There are a few nitt-picks but what car doesn't have them?
I've been getting the Bolt exactly the way I like it. I added a sunglasses holder: Untitled by tk_1971, on Flickr Untitled by tk_1971, on Flickr Left foot rest since my light carpeting is getting really dirty from all the rain. This is temporary until either Weathertech or Husky comes out with liners: Untitled by tk_1971, on Flickr Some personalization: Untitled by tk_1971, on Flickr I'm having problems with the trailer hitch. The one I got has the receiver way too low. Only 7" of ground clearance. I've communicated with Curt and they state that they should have a V2 of the hitch out in a couple of weeks and that I can exchange it when it's available: Untitled by tk_1971, on Flickr