Page "Bitter Cars" Paragraph 4

Due to large success of the IAA CD study.

Opel played with the thought of building a road-suited vehicle to develop further.

The doors should be replaced by normal doors, and the vehicle bumper, windshield wipers and a reuse of other Opel Diplomat parts for cost and ease of going to production.

Robert " Bob " Lutz, who was head of Opel at the time, was inspired and wanted the car in production.

So he commissioned Pietro Frua to work on the revision of the Opel CD and preparation of two driveable prototypes.