| Penkethman | R. | Ninth Avenue, Inglewood | Overland | 8791 | Metro Private Car | 1927-28 |
| Penny | A. | 203 Lake Street, Perth | Hudson | 3116 | Metropolitan Hire and Trade Cars | 1923-24 |
| Penny | A. | 203 Lake Street, Perth | Hudson | 3300 | Metropolitan Hire and Trade Cars | 1923-24 |
| Penny | A. | 197 Lord Street, Perth | Studebaker | 8480 | Metro Private Car | 1926-27 |
| Penny | C. R. | Saint George Terrace | Studebaker 20 H.P. | P 399 | Perth Municipality | 1916 |
| Penny | Clifton R. | Perth | Studebaker 20 H.P. | P 399 | Perth Municipality | 1915 |
| Penraat | J. | Lake Grace | Chevrolet Truck | LG ● 94 | Lake Grace Road Board | 1927-28 |
| Pense | MRS F | Wickepin | Dodge | WK ● 114 | Wickepin Road Board | 1926-27 |
| Pense | Mrs F. | Wickepin | Ford | WK ● 114 | Wickepin Road Board | 1925-26 |
| Pense | Mrs F. | Wickepin | Dodge | WK ● 114 | Wickepin Road Board | 1927-28 |
| Peover | J. L. | Wickepin | Ford | WK ● 232 | Wickepin Road Board | 1927-28 |
| Pepper | Louisa | Woolundra | Studebaker | KE ● 85 | Kellerberrin Road Board | 1927-28 |
| Perch | H. | Baandee | Ford 19 H.P. | KE ● 32 | Kellerberrin Road Board | 1922-23 |
| Perdriau Rubber Co | - | Perth | Studebaker | 2724 | Metro Private Car | 1927-28 |
| Perdue | G. J. | Holyoake | Gray | MY ● 5 | Murray Road Board | 1924-25 |
| Perker | C. E. | Albany | Chevrolet Truck | A 188 | Albany Municipality | 1927-28 |
| Perkins | C. W. | Albany | Studebaker 20 H.P. | A 14 | Albany Municipality | 1916 |
| Perkins | E. W. | Albany | Studebaker 20 H.P. | A 14 | Albany Municipality | 1915 |
| Perkins | W. | 8 Parker Street, Perth | Ford | 6383 | Metro Private Car | 1925-26 |
| Perriman | W. T. | Bourke Street, Kalgoorlie | Ford | KMC 362 | Kalgoorlie Municipal Council | 1927-28 |
| Perry | A. | Parkerville | Ford | 16024 | Metro Private Car | 1927-28 |
| Perry | A. G. | Tinkurrin | Ford | WK ● 12 | Wickepin Road Board | 1925-26 |
| Perry | B. | Kenny Street, Bassendean | Hudson | 5589 | Metro Private Car | 1927-28 |
| Perry | Bennett | Kenny Street, Guildford | Essex | 126 | Metro Private Car | 1922-23 |
| Perry | Bennett | Kenny Street, West Guildford | Essex | 126 | Metro Private Car | 1923-24 |
| Perry | Bennett | Kenny Street, Bassendean | Essex | 126 | Metro Private Car | 1925-26 |
| Perry | Bennett | Kenny Street, Bassendean | Essex | 126 | Metro Private Car | 1926-27 |
| Perry | Bennett | Kenny Street, Bassendean | Essex | 126 | Metro Private Car | 1926-27 |
| Perry | Kate | Dorakin | Ford 20 H.P. | WK ● 12 | Wickepin Road Board | 1917-18 |
| Perry | Kate | Dorakin | Ford 20 H.P. | WK ● 12 | Wickepin Road Board | 1919 |
| Perry | L. C. | Dalwallinu | Studebaker | DL ● 74 | Dalwallinu Road Board | 1924-25 |
| Perry | L. C. | Dalwallinu | Studebaker | DL ● 74 | Dalwallinu Road Board | 1925-26 |
| Perry | Mrs Kate | Wickepin | Ford | WK ● 12 | Wickepin Road Board | 1923-24 |
| Perry | Mrs Kate | Wickepin | Ford | WK ● 12 | Wickepin Road Board | 1924-25 |
| Perry | R. | 35 Kent Street, Victoria Park | Morris-Cowley | 11894 | Metro Private Car | 1926-27 |
| Perry | R. | 35 Kent Street, Victoria Park | Morris-Cowley | 11894 | Metro Private Car | 1927-28 |
| Perry | W. A. | Cunderdin | Ford | ME ● 53 | Meckering Road Board | 1922-23 |
| Perth City Council | - | G. & E. Dept. Perth | Studebaker | 528 | Metro Private Car | 1924-25 |
| Perth City Council | Electricity & Gas Department | Perth | Studebaker | 528 | Metro Private Car | 1923-24 |
| Peterson | C. F. | Bilbarin | Studebaker | CR ● 120 | Corrigin Road Board | 1925-26 |
| Peterson | C. F. | Bilbarin | Studebaker | CR ● 120 | Corrigin Road Board | 1926-27 |
| Peterson | C. F. | Bilbarin | Studebaker | CR ● 120 | Corrigin Road Board | 1927-28 |
| Pettit | A. | Cunderdin | Essex | ME ● 108 | Meckering Road Board | 1925-26 |
| Pettit | A. | Cunderdin | Essex | ME ● 108 | Meckering Road Board | 1926-27 |
| Pettit | A. E. | Cunderdin | Overland | ME ● 108 | Meckering Road Board | 1924-25 |
| Pettit | A. W. | Cunderdin | Dodge | ME ● 324 | Meckering Road Board | 1927-28 |
| Pettit | F. C. | South Cunderdin | Ford | ME ● 134 | Meckering Road Board | 1925-26 |
| Pettit | F. C. | South Cunderdin | Ford | ME ● 134 | Meckering Road Board | 1926-27 |
| Pettit | H. | Newdegate | Ford | LG ● 65 | Lake Grace Road Board | 1925-26 |
| Pettit | H. | Newdegate | Ford | LG ● 65 | Lake Grace Road Board | 1926-27 |
