Nurburgring 1000 kms: David Piper / Frank Gardner, Porsche System Engineering, Porsche 917 004 leads David Hobbs / Mike Hailwood, J. W. Automotive, Mirage M2/300 BRM 003 and Johannes Ortner / Gijs van Lennep, Abarth-Osella, Abarth 2000 SP.
David Piper / Frank Gardner, Porsche System Engineering, Porsche 917 004 leads David Hobbs / Mike Hailwood, J. W. Automotive, Mirage M2/300 BRM 003 and Johannes Ortner / Gijs van Lennep, Abarth-Osella, Abarth 2000 SP.