Rank 46 documents the Porsche 904 — the mid-1960s sports prototype that carried Porsche's transition from four-cylinder GT craft into the flat-six endurance lineage that would rewrite Le Mans statistics through the 917 era. Built around a 2.0-litre flat-four in a lightweight fibreglass body, the 904 combined elegant proportions, low nose, and white livery variants that factory and customer teams campaigned at La Sarthe from 1964 through 1965. The plate's triptych layout traces three Sarthe configurations: the 1964 car with distinctive green nose band and number 31, the centre all-white number 34 factory aesthetic, and the 1965 entry with red front-fender accents and number 37 — each rendered on warm cream parchment beneath the PORSCHE Endurance · Reserve title block and SARTHE PROTOTYPE badge. Porsche scored class victories and overall podiums with the 904 family before the 906 and 910 programmes escalated displacement and aerodynamic ambition. Wallimilist renders the three-panel grid, Porsche crest footer, and gold border exactly as the master PNG dictates — curator copy on Weissach prototype folklore before Group C mythology existed.