Fuel economy sounds impressive.
EGHR sounds familiar : http://www.google.ca/patents/US8636622
...that, and Lexus uses it in the 450h applications. I'm not sure if it's used in the Toyota products.
What I like about this is that they used the 1.8L (sounds like a lot of Volt components), and the layout looks like the trunk space won't be terribly compromised. With GM's vault-like (that is, quiet) interiors of late, coupled with the easy highway cruising, this could make for one excellent vehicle (assuming rear-seat space isn't compromised).
I would still like to see GM change the name from Malibu to something more appealing.