History:
Classes:
Up through the late 1940s, there were a limited number of classes that cars could run in. When Bill Burke ran his first Belly Tank in 1946, it was classified in the “Streamliner” class.
| Year | Class | Description | Record Holders |
| 1946 | Roadster | Engines up to 260 cu. in. | Randy Shinn (Road Runner): 128.66 mph average |
| Modified | Engines up to 260 cu. in. | Karl Orr (Albata): 133.03 mph average | |
| Streamliner | Engines up to 260 cu. in. | Bob Rufi (Albata): 140.00 mph average | |
| Unlimited | Any chassis – engines over 260 cu. in | Tony Capanna (Albata): 137.24 average | |
| 1947 | |||
