Ok, so try to picture this. You take an Envoy XL and replace everything aft of the rear seats with a covered pickup truck bed and midgate (a la Avalanche and Escalade EXT). Then you add a powr-retracting roof panel which goes over the bed, and a tailgate that either opens down like a pickup bed or swings to the curb like a CR-V or RAV4.

From edmunds.com: