Neil -
I looked at the pictures. It looks like it keeps it's width from front to back. My brain remembers it tapering more in (the top view of) previous designs. This makes sense from a "more storage volume, please" POV. Gotta put those golf bags somewhere!
It's funny because I read that the EV-1 also had a requirement for being able to haul two golf bags. I guess some things never change,
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CarloSW2