Baudett
I agree that you must look at the 21 cars separately to the 4 factory use cars. I would say that the 4 cars (three with standard – as far as I am aware - S engines to begin with and the fourth delivered without an engine) should be considered “ST’s in todays context but, like all “ST’s” back in the day, were referred to as S’s albeit competition versions for G3 or Gp4 . Yes, there is a big distinction between the 21 and any other competition oriented 1972 911S, including the factory use cars, as the 21 were built as a limited production run of supposedly identical cars. They had to be called S’s and be presented as a “S” not with a different name as otherwise they may not have been considered to be homologated under FIA 3025 as to be homologated in any other name there would need to be 500 identical cars built to be a Gp 4 car. Each of the “types” of cars S, T, and E coupes AND targas had their own homologation number and these had to fit in under the S coupe papers.
There was something to distinguish these cars from the others in 1972 – they were called 911S 2.5 M491 an accurate description of how the GP4 car appeared in the paperwork. They could have been called 911S Gp4. However I cannot recall if any other marques Ford, Lancia etc ever called one of their Gp4 cars with that Gp4 description – even the Lancia Stratos for example, possibly the first car specifically designed and built from the ground up as a Gp4 homologation special rather than a converted road car, was called either the “Stradale” or road version or the “Competizione” or race version but the only name used was “Lancia Stratos HF”. The Porsche RS was similar but not quite the same – they initially aimed at 500 cars for Gp4 with a separate name “Carrera” and separate homologation papers but the car was based on a tried-and-true road and competition car.
On 1081 I agree that the invoice does not say M471 on it at any point that I have found. The Hahn invoice shows options 220 (limited slip diff) 402 (Koni Shock absorbers) 420 (roll bar) and 424 (85 litre fuel tank) only. I have never seen the build sheet but it is normal that the “standard options for an order type” are not shown on the sales invoice. The other sports options (10,000 tach and speedometer) seem to have been purchased separately. However the original the Automobil-Bestellung or original order also shows options M473 (S spoiler) M404 (front and rear anti roll bars) M411? (911S instruments and oil tank?) as well as M220.
I got my opinion that it was a M471 from the sales material in 2019 which included a detailed German history PDF including the sales documents (AUTOMOBIL-BESTELLUNG) etc which I think is the source of what you have posted here before.
My understanding of what it says that led me to think it has option M471 is
“This car – with VIN-Nr 911 230 1081 (we will refer to it as #1081) – was delivered by the factory as a Gulf Orange Porsche 911S with “T” race-specification (see sales order) to Max Moritz on 27 March 1973 for delivery to fur trader and racer Claus Utz from Reutlingen.
The “T” race spec was comprised of light-weight body, thin glass, alu trunk lid, sport seats, 5 speed gearbox, front spoiler and anti-roll bars to which Claus Utz then added in his purchase order an 80 liter fuel tank, special speedometer (up to 300km), special rev counter (up to 10,000 rpm) and a limited slip differential. The engine number was 6321607 and gearbox nr was 326765”.
So I think that M471 was a standard part of the "911S Typ "T"" spec. along with some or all of the other parts mentioned and thus not shown separately.
The photo of the actual sales order, both on this site and in the original 2019 sales material, is cropped off on the LHS. However just under the PORSCHE VW-PORSCHE heading (which has the latter crossed out) there is a hand written (I presume) model name that is mostly cut off but the last letter is clearly a separate “T” and there is obviously a word before it. I am assuming, (maybe incorrectly) that the full word there is 911S, Typ “T” as written in the text.
On the timing of the KFZ my understanding (which one of the German members should be able to confirm) is that the KFZ is simply the registration documents for any car that is going to be domiciled in Germany. It is filled out at the original point of sale by the manufacturer or their representative – not the owner- and stays with the car from then on. It would therefore be dated when the car left the factory (or maybe Hahn as the factory distributor or handler) to go to Max Moritz. Therefore, it would have no bearing on when the car had the modifications completed and was given to the eventual first owner.
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