Mezger graduated from the Stuttgart Technical University in 1956 with a Diploma of Engineering degree, and went straight to work at Porsche's Works 1 development department. His first project was to work on the valve train of the Fuhrmann-designed Carrera engine. In 1959 he moved to the design department to work on the type 753 flat-eight engine for the Porsche 804 Formula 1 car.
Over the next 35 years he took part in the 1960s F1 programme, undertook design leadership for the first Porsche 911 production engine and leader of the famed 1960s Race Design office that turned out the 917s. Mezger led Porsche's development of turbocharging with the 1100 hp 917/30 and its application to the 911 Turbo.
He retired in 1994.
- "Porsche congratulates Hans Mezger on his milestone birthday". Porsche. 17 November 2009. Retrieved 29 December 2014.
- "A return to Formula 1 for Porsche's Hans Mezger". Motor Sport. November 1983. Retrieved 29 December 2014.
- "PORSCHE AND ME: THE AUTOBIOGRAPHY OF HANS MEZGER". Total 911. Retrieved 29 December 2014.
- Porsche and Me: Hans Mezger, Autobiography with Peter Morgan. 2011. 978-1906712082