Those internal memos are from around 1970. Until 1972, the S-T models were being produced. I have searched for the photo of the white S-T outside the factory and always try to focus on the same point. Either due to lack of definition or because the vehicle in the rear grill does not have the 2.4L insignia. Besides, the vehicle is located outside the factory. I suppose this image has been discussed several times in this post, but I always find it interesting to see it again and to see where it was produced. Outside the factory. From my perspective...
People were informed that there was an S-T in the factory, ready to be tested by potential buyers. Homologated or not, that model is talked about, so I wonder, what Porsche was being advertised to be "tested"? Was it a 911S with a kit, as geneulma mentioned, or at that time when it was announced and there were no later issues with "approval," was it a 911 S-T?
I reiterate the point about the image of the white S-T. Does anyone have it in better definition? From my point of view, the absence of the "insignia" can say something, from the factory. Besides, we would already be in 1972, and by that time the issue of approval would be very clear. Would they have been 911S with kits back then?
Did Porsche ever sell vehicles "not approved" for the road? I suppose this question could be quite extensive...
https://www.early911sregistry.org/fo...1&d=1259942622
Name:  Factory 72 ST rear.jpg
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Apart from that, does the homologation only apply to the country of origin? If the car were directly exportable, would it have been possible to have built one of those S-T models that the factory was advertising?