What convertible top mechanism was used for the Avanti?

[grobb284]

Interested in what convertible top mechanism was used by Avanti on their convertibles? I'm speaking of the more original style bodies, before going to the AVX style.

Also any help with what rear quarter window was used with them?

Any help, information, or leads appreciated. Thanks.

Here is a picture of perhaps a 1984?

[Gunslinger]

That photo is of one of the two convertible prototypes. I'm not sure on every point, but I believe the photo is of the first prototype, which was based on a '78 that was converted in the mid 1980's at the request of Steve Blake.

The prototypes were contracted out to to different custom shops. The reason I believe that car is the first is due to the high convertible top boot instead of one made more flush with the body, and I read the first conversion was like that. Production cars had the top fold down much more flush with the body. All production cars were also rubber bumper cars...only the two prototypes have chrome bumpers.

I'm also not sure but I believe the convertible top mechanisms on production cars were modified GM systems but I don't know from what GM cars they were modified from.