| P.W.D. Water Supply | - | Perth | International Wagon | 8109 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Dodge | 8110 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Graham Wagon | 8112 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Ford Wagon | 8115 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Graham Wagon | 8116 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Graham Wagon | 8121 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Ford | 8127 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Ford Truck | 8134 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Ford Truck | 8135 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Graham Truck | 8139 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Ford Wagon | 8142 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Ford Wagon | 8144 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | Perth | Ford Truck | 8174 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply | - | - | Ford | 14126 | Metro Private Car | 1927-28 |
| P.W.D. Water Supply Department | - | Perth | Ford Wagon | 4165 | Metro Private Car | 1926-27 |
| P.W.D. Water Supply. | - | Perth | Graham Wagon | 8112 | Metro Private Car | 1925-26 |
| Pabury | W. | Guildford | Buick | 963 | Metro Private Car | 1924-25 |
| Pace | Rev. Father | Katanning | Overland | KA ● 19 | Katanning Road Board | 1924-25 |
| Pace Bros | - | 96 Kingston Avenue, West Perth | Chevrolet | 9196 | Metro Private Car | 1925-26 |
| Pacific Sales Co | - | C/o J. Cowan Grosvenor Hotel | Ford | 5943 | Metro Private Car | 1924-25 |
| Pacific Sales Co | - | C/o J. Cowan Grosvenor Hotel | Ford | 5956 | Metro Private Car | 1924-25 |
| Pacific Sales Co | - | C/o Grosvenor Hotel, Perth | Ford | 4070 | Metro Private Car | 1924-25 |
| Pacific Sales Co | - | Grosvenor Hotel | Ford | 1190 | Metro Private Car | 1924-25 |
| Pack | S. L. | Broome | Le Zebre 6 H.P. | B 12 | Broome Municipality | 1916 |
| Pack | S. L. | Broome | Le Zebie 6 H.P. | B 12 | Broome Municipality | 1917-18 |
| Packard | J. | Bruce Rock | Ford Truck | BK ● 246 | Bruce Rock Road Board | 1927-28 |
| Packer | H. S. | Cannington | Dort | 8573 | Metro Private Car | 1927-28 |
| Packer & Harsey | - | Cannington | International Wagon | 8630 | Metro Private Car | 1927-28 |
| Packer & Hersey | - | Cannington | International | GS ● 16 | Gosnells Road Board | 1924-25 |
| Packer & Hersey | - | Cannington | Dodge | GS ● 24 | Gosnells Road Board | 1924-25 |
| Packer & Hersey | - | Cannington | Dort | GS ● 29 | Gosnells Road Board | 1924-25 |
| Packer and Hersey | - | Cannington | International | GS ● 16 | Gosnells Road Board | 1923-24 |
| Packham | F. | Tammin | Maxwell | ME ● 161 | Meckering Road Board | 1925-26 |
| Packham | F. | Tammin | Maxwell | ME ● 161 | Meckering Road Board | 1926-27 |
| Packham | F. | Tammin | Maxwell | ME ● 161 | Meckering Road Board | 1927-28 |
| Packham | J. | Tammin | Ford 20 H.P. | MKB 10 | Meckering Road Board | 1915 |
| Packham | J. J. | Tammin | Buick | ME ● 158 | Meckering Road Board | 1925-26 |
| Packham | J. J. | Tammin | Cuick | ME ● 158 | Meckering Road Board | 1926-27 |
| Packham | J. J. | Tammin | Buick | ME ● 158 | Meckering Road Board | 1927-28 |
| Packham & Sons | - | - | Ford 20 H.P. | ME 10 | Meckering Road Board | 1916 |
| Packham & Sons | - | Tammin | Dodge | ME ● 10 | Meckering Road Board | 1922-23 |
| Packham & Sons | - | Tammin | Dodge | ME ● 10 | Meckering Road Board | 1923-24 |
| Packham & Sons | - | Tammin | Dodge | ME ● 10 | Meckering Road Board | 1924-25 |
| Packham & Sons | - | Tammin | Dodge | ME ● 10 | Meckering Road Board | 1926-27 |
| Packham & Sons | - | Tammin | Dodge | ME ● 10 | Meckering Road Board | 1927-28 |
| Packham & Sons. | - | Tammin | Dodge | ME ● 10 | Meckering Road Board | 1925-26 |
| Packwood | W. H. | 112 Railway Terrace, Maylands | Ford | 1649 | Metro Private Car | 1924-25 |
| Packwood | W. H. | 112 Railway Terrace, Maylands | Ford | 1649 | Metro Private Car | 1925-26 |
| Packwood | W. H. | 112 Railway Terrace, Maylands | Morris-Cowley | 1649 | Metro Private Car | 1926-27 |
| Packwood | W. H. | 112 Railway Terrace, Maylands | Morris-Cowley | 1649 | Metro Private Car | 1927-28 |
