In a book of 2001 written by a crew of specialist to commemorate the 50th anniversary of the Pegaso Z-102 is the following detail:
Only 84 chassis Z-102 were built, the bodies were made by different suppliers, 42 by Touring, 20 by the own company (Enasa), 18 by Soutchik and the last 4 by Serra. Z-104 was a new motor development, never a full car, 4 motors with different capacities were built and one of them was applied to a Z-102 chassis with Serra body, at that car was given the type Z-103, but the project was interrupt before the full development of that car. It's supposed that around 65 of the Pegasos Z-102 still exist, half of them in running condition.
About the windshield for he copilot, just that picture shows it, also the rest of pictures of the definitive Bisiluro used to break records show some other differences, maybe that picture was of the prototype not fully developed.
