File:Porsche Carrera RSR Turbo in the Porsche-Museum.jpg - Wikimedia Commons
Porsche 911 Carrera RSR Turbo 2.1: the first monster - Total 911
Le Mans Legend: 1974 Porsche 911 Carrera RSR 2.1 Turbo to be auctioned | Hemmings
1974 911 Carrera RSR Turbo 2.1 liter with exposed single turbo which produced 500hp. The road car derived RSR 2.1 came second at the 1974 24 Hours of Le Mans, beating a
Le Mans podium Porsche 911 Carrera RSR 2.1 Turbo - in pictures | Classic & Sports Car