George Frey's McLaren M10A
Paul Dudiak's McKee Mk. 12C
Bud Moeller's Ensign MN179
Dave Handy's Shadow DN6
Philip Lewis' Matich A50
Ethan Shippert's Brabham BT44
Gregory Thornton's Lotus 77
James King's March 761
Mark Harmer's Surtees TS-5
Jeffrey Green's Lola T-300
George Bruggenthies' Surtees TS-8
James Hagan's Tyrrell 011
Chris Locke's Lotus 77
Phil Gumpert's Shadow DN8
