Factory RS reinforcement plates in the center tunnel are an authenticator for early 1974 Carreras with factory RS flares. Discovering them under the carpet on an unverified car is a meaningful provenance event — it confirms the body received the factory racing-derived bracing rather than aftermarket flares grafted onto a base car.
Carrera RS / 1974 Carrera factory reinforcement — authentication marker
Porsche 911 (G-series) · factory-spec