Car number 21 Chevron B26 Hart driven by Peter Gethin and John Watson
Car number 18 Chevron B31 Hart driven by Ian Grob, John Hine
Car number 18 Chevron B31 Hart driven by Ian Grob / John Hine
Car number 22 Chevron B31 Hart driven by Ian Grob / John Hine
Car number 23 Lola T390 Hart driven by Martin Raymond / Tony Goodwin
Car number 20 March 75S Hart driven by John Lepp / Teddy Pilette