Hi Jim
An amazing coincidence - I found the following image just an hour ago while researching something totally unrelated to GT40s - and I just answered my own question - wierd!
You are right that there was a Sbarro connection. However, I believe that these windows were originally from P1033, and were fitted by George Filipinetti, who wanted to create a luxurious road car,
before Sbarro got involved. The car was built up from new with electric windows from an incomplete car supplied by Ford to Filipinetti for the Geneva show - it was not converted - you could argue that these were an "original" fitment.
Apparently, Claude Sage, MD of Scuderia Filipinetti, directed Hermann Graber to fit these windows, along with chrome headlamp surrounds (these look better than they sound - believe me), air con, radio, grilles for the NACA ducts and the twin nostril holes (these look worse than they sound - believe me), front over-riders, full leather interior, etc, etc.
After Filipinetti sold the car in 1968, ex-Filipinetti employee Frank Sbarro,
ripped out these "improvements" and modified the car for competition. After the car burnt out, Sbarro put these mods back in, as well as (allegedly) replacing the chassis with a Sbarro monocoque chassis. It looks like the mods were taken off again some time ago.
Hi Kevin
The electric windows I saw today (and which for some unknown reason I made an offer on) are cleverly designed to include a fixed rear section, and are exactly the same as the attached image of P1033, from 1967. The windows I saw today lack the chrome surround. They came to the UK from mainland Europe in a deal involving a Bizzarrini, presumably from Sbarro. I will be having a closer look at these and the other items in a couple of weeks and will post photos of the exterior/internals then if anyone is interested.
Cheers.
Rob