| Corser | C. L. | 3 Sunbury Road, Victoria Park | Standard | 13528 | Metro Private Car | 1926-27 |
| Corser | C. L. | 3 Sunbury Road, Victoria Park | Morris Oxford | 4724 | Metro Private Car | 1927-28 |
| Corser | C. L. | 3 Sunbury Road, Victoria Park | Standard | 13528 | Metro Private Car | 1927-28 |
| Corser | E. | 2 Bennett Street, East Perth | Chevrolet | 11666 | Metro Private Car | 1926-27 |
| Corser | E. | 2 Bennett Street, East Perth | Chevrolet | 11666 | Metro Private Car | 1927-28 |
| Corser | Harry | 16 Oswald Street, Victoria Park | Ford | 2998 | Metro Private Car | 1927-28 |
| Corteen | T. J. | C/o F Manford & Co., Henry Street, Fremantle | Dodge | 1281 | Metro Private Car | 1925-26 |
| Corteen | T. J. | C/o F. Manford & Co, Henry Street, Fremantle | Dodge | 1281 | Metro Private Car | 1926-27 |
| Corteen | T. J. | 171 Claremont Avenue Claremont | Pontiac | 12406 | Metro Private Car | 1927-28 |
| Corti | Violet | Lyalls Mill | Whippet | CO ● 139 | Collie Road Board | 1927-28 |
| Corti | W. | Lyalls Mill | Ford | CO ● 18 | Collie Road Board | 1923-24 |
| Corti | W. | Lyalls Mills | Ford | CO ● 18 | Collie Road Board | 1924-25 |
| Corti | W. | Lyalls Mill | Ford | CO ● 18 | Collie Road Board | 1925-26 |
| Corunna | A. | - | Chevrolet Truck | NA ● 6 | Nungarin Road Board | 1924-25 |
| Corunna | A. | - | Chevrolet Truck | NA ● 6 | Nungarin Road Board | 1927-28 |
| Cory | J. H. ( Senior) | Kweda | Ford | CR ● 91 | Corrigin Road Board | 1926-27 |
| Cory | J. J. | Bulyee | Ford Truck | CR ● 309 | Corrigin Road Board | 1927-28 |
| Cosgrave | D. | Yelbeni | Ford Truck | KTY ● 164 | Kununoppin-Trayning Road Board | 1927-28 |
| Cosgrove | J. | Yelbeni | Overland | KTY ● 115 | Kununoppin-Trayning Road Board | 1927-28 |
| Cosgrove | M | Yelbeni | Light Overland | NG ● 15 | Ninghan Road Board | 1923-24 |
| Cosgrove | M. | Yelbeni | Light Overland | NG ● 15 | Ningham Road Board | 1922-23 |
| Cosgrove | M. | Yelbeni | Overland | KTY ● 15 | Kununoppin-Trayning Road Board | 1924-25 |
| Cosgrove | M. | Yelbeni | Hupmobile | KTY ● 15 | Kununoppin-Trayning Road Board | 1925-26 |
| Cosgrove | M. | Yelbeni | Overland | KTY ● 115 | Kununoppin-Trayning Road Board | 1925-26 |
| Cosgrove | M. | Yelbeni | Hupmobile | KTY ● 15 | Kununoppin-Trayning Road Board | 1926-27 |
| Cosgrove | M. | Yelbeni | Overland | KTY ● 115 | Kununoppin-Trayning Road Board | 1926-27 |
| Cosgrove | M. | Yelbeni | Essex | KTY ● 15 | Kununoppin-Trayning Road Board | 1927-28 |
| Cosgrove | R. M. | Kwolyin | Ford | BK ● 133 | Bruce Rock Road Board | 1924-25 |
| Cosgrove | R. M. | Kwolyin | Ford | BK ● 133 | Bruce Rock Road Board | 1925-26 |
| Cosgrove | R. M. | Kwolyin | Ford | BK ● 133 | Bruce Rock Road Board | 1926-27 |
| Cosgrove | R. M. | Kwolyin | Ford | BK ● 133 | Bruce Rock Road Board | 1927-28 |
| Cosh | E. C. | Minnievale | Ford | D ● 37 | Dowerin Road Board | 1923-24 |
| Cosh | E. C. | Minnivale | Ford | D ● 37 | Dowerin Road Board | 1924-25 |
| Cosh | E. C. | Minnivale | Dort | D ● 37 | Dowerin Road Board | 1925-26 |
| Cosh | E. C. | Minnivale | Dort | D ● 37 | Dowerin Road Board | 1926-27 |
| Cosh | E. C. | Minnivale | Ford Truck | D ● 146 | Dowerin Road Board | 1926-27 |
| Cosh | E. C. | Minnivale | Studebaker | D ● 37 | Dowerin Road Board | 1927-28 |
| Cosh | H. L. | Corrigin | Ford | CR ● 110 | Corrigin Road Board | 1925-26 |
| Cosh | H. L. | Corrigin | Ford | CR ● 110 | Corrigin Road Board | 1926-27 |
| Cosh | J. G. | Corrigin | Ford | CR ● 230 | Corrigin Road Board | 1927-28 |
| Cosh | S. | Kellerberrin | Buick | KE ● 65 | Kellerberring Road Board | 1923-24 |
| Cosh | S. | Lower Chittering | Dodge | CH ● 36 | Chittering Road Board | 1926-27 |
| Cosh | S. | Lower Chittering | Dodge | CH ● 36 | Chittering Road Board | 1927-28 |
| Cosh | W. L. | Corrigin | Ford Truck | CR ● 278 | Corrigin Road Board | 1927-28 |
| Cossey Bros | - | Dowerin | Gray | D ● 169 | Dowerin Road Board | 1927-28 |
| Cossey Bros. | - | Dowerin | Gray | D ● 169 | Dowerin Road Board | 1926-27 |
| Cossin | L. | Esperance | Dodge | EO ● 10 | Esperance Road Board | 1927-28 |
| Costa | G. | Worsley | Chevrolet | H ● 204 | Harvey Road Board | 1927-28 |
| Costan & Co | - | 306 Wellington Street, Perth | Graham Truck | 1362 | Metro Private Car | 1927-28 |
| Costantine | Mrs K. | 11 Hampton Road, Fremantle | Chevrolet | 6052 | Metro Private Car | 1926-27 |
