5x brumm Ferrari 312 pb The Ferrari 312 PB was a Group 6 Prototype-Sports Car introduced in 1971 by Italian carmaker Ferrari. It was officially designated the 312 P, but often known as the 312 PB to avoid confusion with a previous car of the same name.[1] It was part of the Ferrari P series of Prototype-Sports Cars but was redesignated as a Group 5 Sports Car for 1972. Ferrari 312 P Category 1971:Group 6 Prototype-Sports Car 1972-73:Group 5 Sports Car Constructor Scuderia Ferrari Designer(s) Mauro Forghieri Predecessor Ferrari 312 P Successor Ferrari 333SP Technical specifications Chassis Aluminium central monocoque with steel spaceframe front and rear Suspension (front) Double wishbone, outboard coil spring/damper Suspension (rear) Single top-link, reversed lower wishbone, twin radius arms, outboard spring/damper Engine Ferrari Tipo 001 3.0 L DOHC flat-12, naturally aspirated, mid-mounted Transmission Ferrari 5-speed manual Fuel Shell Tyres Firestone/Goodyear Competition history Notable entrants Scuderia Ferrari Notable drivers Sweden Ronnie Peterson Belgium Jacky Ickx Switzerland Clay Regazzoni United Kingdom Brian Redman United States Mario Andretti Italy Arturo Merzario Italy Sandro Munari Australia Tim Schenken Argentina Carlos Reutemann Brazil Carlos Pace Debut 1971 1000 km Buenos Aires Constructors' Championships 1 (1972 WSC)