Hello, I come to be clear with the questions, concise. Why was the ST designation not used commercially? In theory ... According to the knowledge of the "great" holders of information and the researchers of Porsche history, this designation was never used since "it was never a model" but a preparation on a 911S in the case of the factory. Therefore I ask. Is there a document where a vehicle has run an event such as 911 ST? Yes? No?

Baudett