Patrick: Yup. The AWD clutch pack (center differential) requires the engine to be running while moving. A big disadvantage when you want to hypermile.
Daox: I'm not attached to regen really, but I was thinking simply slowing down without brakes (gearing down) it should still regen? I also don't know how much regen amps my batteries can take. As far as why them, I know they're proven and they're cheap is why I'm going for them. Plus, I can fit all 8 without losing any real trunk space: