Here's a video of what a Troller T4 is. Ford owns the company. I think if Ford was to bring this to the US and could keep quality at a decent level, it would shake up Jeep. It's powered by a 3.2L Turbodiesel. It's an all fiberglass body with an integrated tube roll-cage. I'm sure the the body is light. No rear 'trunk' but then who really cares about that with a Wrangler? Everyone jstu throws their stuff into the back seat.
https://www.youtube.com/v/ulBnML5sdYo