Group 3 will feature the sedans that were eligible to run in the SCCA Trans-American Endurance Racing series during the years 1966 through 1972. Group 1 will feature the big production Sports cars and special Exhibition Cars that are not subject to the following Group 3 Trans-Am limitations:
| Period of Eligibility | Manufactured 1972 and earlier (Porsche 911 manufactured 1969 and earlier) |
| Race History | Not Required |
| Displacement: | 5 liter maximum all cars 2.5 liter maximum: U-2 cars 1971 and 1972 2 liter maximum: U-2 cars 1970 and earlier |
| Heads | O2: Factory iron U2: Period |
| Tires | No slicks/vintage aspect ratio |
| Wheels | O2: 8×15-inches maximum U2: 7×15-inches maximum |
| Classification | Eligible cars will be classified at the track based on year, model, and adherence to period of manufacture. |
| Appearance | Eligible cars will be painted and neat having modest advertising. Any fender flares shall be modest and correct for the era. |
1969 General Competition Rules
Check out the 1969 SCCA Trans-American Championship rules (PDF) for some interesting historic reading and reference.
Be a part of history! For the thrill of a lifetime, mark your race calendar for the Pikes Peak International Hill Climb, July 14-19, 2009. This will be the second annual running of Vintage Cars on the Hill in conjunction with the 87th running of the Pikes Peak International Hill Climb.
Check out the latest on what’s happening on the High Plains Raceway project by visiting