Techniek

Early in the bB’s production, Toyota got creative and reworked the hatchback into a new car: the Open Deck.
Classified as a coupe utility, Toyota cut the roof off the cargo area and placed structural bars where the roof used to be.
The hatch was replaced with a tailgate to gain access to the newly created truck bed, and the new rear window became another tailgate.
It was a two-piece clamshell design, where rear glass lifted on gas struts, and the lower portion folded down flat into the truck bed.
Rear seats folded flat to make for an extra-long cargo area.
The abbreviated site profile of the bB could no longer support four doors, so the rear door was removed on the driver’s side.
On the passenger side, the rear door was shrunk and hinged at the rear.
Then Toyota removed the passenger side b-pillar for maximum access. The three-door Open Deck was a (very) short truck all the time, and a slightly more capacious truck when you needed it to be.

There’s no word on how many Open Decks were made, but it’s a safe bet there weren’t many.
It’s like a SEMA custom job that actually made production.
They’re difficult to find for sale.