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  1. #11
    I think the designation S/R is more appropriate for those 21 vehicles.
    But it's just a thought!
    *Since I haven't seen any internal document where S/R is mentioned.
    My message is incorrect if we understand the '72 ST as a vehicle homologated for both track and rally use.
    +
    What I don't understand is why homologate M491 for all the S/Ts. That implies (if I'm not mistaken) a 2.5 engine from those listed in various documents. I understood that the sports purpose manual indicates the 2.4 engine as correct (with its improvements) instead of the 662 (2.5) engine. So, if a driver wanted to request one of those S/Ts with the improved 2.4 engine instead of a 2.5, would that not be possible? Since those 21 vehicles carry M491? (I understand M491 as, in short, the "track" engine, which in the context of '72 would also be used in rally).
    When a vehicle was requested from the factory in '72 for 100% rally, was one of these M491s delivered, or was there something more specific for that type of vehicle in '72? From the text, it is understood that the ST was used in both track and rally cases, but when it was a rally driver who didn't want the 662 engine, what did they get? I suppose, if at some point an internal document mentioning S/R appears, just as the one mentioning S/T as a "base model" to be equipped later did, some things will be clarified. However, I don't know if such a document exists, especially for the year '72.
    Last edited by _gonbau; 06-08-2024 at 10:46 AM.

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