| 1 | MSCX | North American Car Corp. | added 7/1955; 10/1957-1/1975; eliminated 4/1975 | | NAKINA |
| 2 | MSCX | Mather Stock Car Co. | 7/1935-7/1954; eliminated 7/1955 | | NAKINA |
| 3 | MSCX | Mather Stock Car Co. | 4/38-1/52; eliminated 7/55 | | NRHS |
| 4 | MSCX | North American Car Corp. | added 7/55; 10/57-1/75; eliminated 4/75 | | NRHS |
| 5 | MSCX | *MICHIGAN STAR CLIPPER | | | PWRC |
| 6 | MSCX | *(NATX) NORTH AMERICAN CAR CORP [MATHER STOCK CAR CO. (NCCo)] | | | PWRC |
| 7 | MSCX | MTACC EAST SIDE ACCESS | | | SCAC4 |
