| 3? | Elva Mk VII Porsche | Competition Imports, Inc. | | Goodyear | | - | mid |
| 31 | Genie Mk.8 Chevrolet | | white (+red) | | | open | - |
| 39 | Cooper King Cobra Ford | | metallic blue | Goodyear | STP | open | mid |
| 57? | Elva Mk VII BMW | | | Goodyear | | - | mid |
| 65 | Chaparral 2A Chevrolet | Chaparral Cars Inc. | white | Firestone | | open | mid |
| 66 | Chaparral 2A Chevrolet | Chaparral Cars Inc. | white | Firestone | | open | mid |
| 77? | Elva - BMW | | | | | - | - |
| 91 | Shelby Cobra 427 | Essex Wire Racing Team | | Firestone | | - | front |
| 96 | Shelby Cobra | Shelby American | | | | - | front |
| 98 | Shelby Cobra | Shelby American | | Goodyear | | - | front |
| 99? | Elva - BMW | | | | | - | - |
| Porsche 356 Speedster | | | | | - | rear |
| Porsche 718 RS 60 | | | | | - | mid |
| Alfa Romeo TI | | | | | - | - |
| Porsche 356 Super 90 | | | | | - | rear |
| Lotus 23B | | | | | - | mid |
| Chevrolet Corvette Sting Ray | | | | | - | front |
| Lotus 23B | | | | | - | mid |
| Lotus 23B | | | | | - | mid |
| Chevette (McKee Mk I Chevrolet) | | | | | - | - |
| Porsche 904 GTS | | | | | - | mid |
| Lang Cooper | | | | | open | mid |
| Elva - BMW | | | | | - | - |
| Ford Mustang | | | | | - | front |
| Porsche 904 GTS | | | | | - | mid |
| Gerber Payne Special (McKee Mk III Ford) | | | | | - | - |
| Enduro Speed Special | | | | | - | - |
| Porsche 904 GTS | | | | | - | mid |
| 427 LMD (McKee Mk IV Ford) | Skip Lehmann | | | | - | - |
| Lotus 23 Porsche | | | Goodyear | | - | mid |
| Chaparral 1 Chevrolet | Robert Bosch | | Firestone | | open | front |
| Lola T70 Ford | Mecom Racing Team | blue | Firestone | | - | mid |
| Lotus Elan | | | | | - | front |
| Lotus Elan | | | | | - | front |
| MGB | | | | | - | front |
| Alfa Romeo TI | | | | | - | - |
| Lotus 30 | | | | | open | mid |
| Elva - Porsche | | | | | - | mid |
| Cooper Monaco T61 Chevrolet | | | | | - | mid |
| Porsche 904 GTS | | | | | - | mid |