<<Just seems the wrong way to go about EVs - electrify an existing model.>>
The 2015 Golf was an all new design specifically designed to accommodate ice, diesel, nat gas, electric and fuel cell. So it's not a matter of shoehorning electric into an old platform. The advantage, of course, is that the huge ice/diesel volumes allows them to undercut the i3 by $8,000 all things considered, plus some free perks on top of that.
VW also has a carbon concept car, and has as investment in a carbon fiber company, so I'm sure they're working on both a carbon Golf for all variations, as well as a longer range e-golf
I test drove the i3, and in November will test drive the e-golf. It will be one or the other, as I've eliminated all other BEV options
Ron