| Carman | Mrs | Bullfinch | Ford | YL ● 30 | Yilgarn Road Board | 1925-26 |
| Carman | Mrs | Bullfinch | Ford | YL ● 30 | Yilgarn Road Board | 1926-27 |
| Carmelo | Micale | Bunbury | Ford | BY 155 | Bunbury Municipality | 1926-27 |
| Carmeron | H. | 3 Cantonment Street, Fremantle | Studebaker | 3227 | Metropolitan Hire and Trade Cars | 1923-24 |
| Carmichael | A. J. | Busselton | Essex | BN 27 | Busselton Municipality | 1924-25 |
| Carmichael | A. J. | Busselton | Essex | BN 27 | Municipality of Busselton | 1925-26 |
| Carmichael | A. J. | Busselton | Essex | BN 27 | Municipality of Busselton | 1926-27 |
| Carmichael | A. J. | Busselton | Essex | BN 27 | Municipality of Busselton | 1927-28 |
| Carmichael | D. J. | Surrey-Chambers Perth | Angus Sanderson | 437 | Metro Private Car | 1922-23 |
| Carmichael | D. J. | Surrey Chambers, Perth | Angus Sand | 437 | Metro Private Car | 1923-24 |
| Carmichael | D. J. | 23 Barrack Street, Perth | Angus-sanderson | 437 | Metro Private Car | 1924-25 |
| Carmichael | D. J. | 23 Barrack Street, Perth | Angus-Sanderson | 437 | Metro Private Car | 1925-26 |
| Carmichael | H. | 29 Park Road, Mount Lawley | Durrant | 5226 | Metro Private Car | 1926-27 |
| Carmichael | H. J. | 42 Wasley Street, North Perth | Ford | 5940 | Metro Private Car | 1924-25 |
| Carmichael | H. J. | 42 Wasley Street, North Perth | Ford | 5940 | Metro Private Car | 1925-26 |
| Carmichael | H. J. | 42 Wasley Street, Perth | Rugby | 5940 | Metro Private Car | 1926-27 |
| Carmichael | H. J. | Alliance Bldgs 96 Saint George's Tce. | Rugby | 5940 | Metro Private Car | 1927-28 |
| Carmichael | Mrs R. | Park Road, Mount Lawley | Durrant | 5226 | Metro Private Car | 1924-25 |
| Carmichael | Mrs R. | Perth Road, Mount Lawley | Durant | 5226 | Metro Private Car | 1925-26 |
| Carmichael | R. C. | 29 Park Road, Mount Lawley | Durrant | 5226 | Metro Private Car | 1927-28 |
| Carmichail | D. J. | 23 Barrack Street, Perth | Crossley | 11324 | Metro Private Car | 1926-27 |
| Carmichail | D. J. | 23 Barrack Street, Perth | Crossley | 11324 | Metro Private Car | 1927-28 |
| Carmody | E. J. | Trayning | Chevrolet | KTY ● 145 | Kununoppin-Trayning Road Board | 1926-27 |
| Carmody | E. J. | Trayning | Chevrolet | KTY ● 145 | Kununoppin-Trayning Road Board | 1927-28 |
| Carmody | J. T. | Rushy Pool, Narrogin | Ford 20 H.P. | NA ● 6 | Narrogin Road Board | 1917-18 |
| Carmody | J. T. | Rushy Pool, Narrogin | Ford 20 H.P. | NA 6 | Narrogin Road Board | 1919 |
| Carmody | J. T. | Narrogin | Ford 20 H.P. | NA ● 6 | Narrogin Road Board | 1922-23 |
| Carmody | J. T. | Narrogin | Overland | NA ● 6 | Narrogin Road Board | 1923-24 |
| Carmody | J. T. | Rushy Pool | Ford | NA ● 6 | Narrogin Road Board | 1924-25 |
| Carmody | J. T. | Rushy Pool | Ford | NO ● 6 | Narrogin Road Board | 1925-26 |
| Carmody | J. T. | Rushy Pool | Ford | NO ● 6 | Narrogin Road Board | 1926-27 |
| Carmody | J. T. | Rushy Pool | Ford | NO ● 6 | Narrogin Road Board | 1927-28 |
| Carn | George H. | Pemberton | Chrysler | WA ● 46 | Manjimup Road Board | 1927-28 |
| Carn | J. | Cuballing | Chevrolet | CN ● 26 | Cuballing Road Board | 1926-27 |
| Carn | J. | Cuballing | Chevrolet | CN ● 26 | Cuballing Road Board | 1927-28 |
| Carnaby | F. H. | The Avenue, Nedlands | Studebaker | 6650 | Metro Private Car | 1924-25 |
| Carnaby | F. H. | The Avenue, Nedlands | Studebaker | 6650 | Metro Private Car | 1925-26 |
| Carnaby | F. H. | The Avenue, Nedlands | Studebaker | 6650 | Metro Private Car | 1926-27 |
| Carnaby | F. H. | The Avenue, Nedlands | Studebaker | 6650 | Metro Private Car | 1927-28 |
| Carnamah Hotel, Co | - | - | Chevrolet Truck | CA ● 189 | Carnamah Road Board | 1927-28 |
| Carnamah Road Board | - | - | Reo Truck | CA ● 136 | Carnamah Road Board | 1926-27 |
| Carnamah Road Board | - | - | Reo Truck | CA ● 136 | Carnamah Road Board | 1927-28 |
| Carnarvaon Motoring Eng. | - | Carnarvon | Dodge | CN 20 | Carnarvon Municipal Council | 1924-25 |
| Carnarvon Motor Engineering Co | - | Carnarvon | Overland 26 H.P. | CN 8 | Carnarvon Municipal Council | 1922-23 |
| Carnarvon Motor Engineering Co | - | Carnarvon | Dodge | CN 20 | Carnarvon Municipal Council | 1922-23 |
| Carnarvon Motor Engineering Co | - | Carnarvon | Dodge | CN 10 | Carnarvon Municipal Council | 1923 - 1924 |
| Carnarvon Motor Engineering Co | - | Carnarvon | Dodge | CN 20 | Carnarvon Municipal Council | 1923 - 1924 |
| Carnarvon Motor Garage Company | - | - | Hupmobile 14-18 H.P. | CN 9 | Carnarvon Municipality | 1917-18 |
| Carnarvon Motor Garage Company | - | - | Hupmobile 14-18 H.P. | CN 10 | Carnarvon Municipality | 1917-18 |
| Carnarvon Motor Garage Company | - | - | Hupmobile 14-18 H.P. | CN 9 | Carnarvon Municipality | 1919 |
