The Harvester™ range extender is a generator packaged in the vehicle platform that will recharge the vehicle's high voltage battery. It will extend the expected range to over 500 miles (based on manufacturer estimates, EPA estimates will be provided when available).
The LA Autoshow walkthrough video Terra Walkthrough at the LA Auto show
talks about how it's going to be rear-mounted and won't effect approach angles or storage of the frunk.
