| Power | Mrs D. | 89 High Street, Fremantle | Essex | 10302 | Metro Hire or Trade | 1926-27 |
| Power | P. | 31 Midgley Street, Victoria Park | Chevrolet | 6788 | Metro Private Car | 1925-26 |
| Power | W. J. | 129 South Terrace, Fremantle | Chevrolet | 5023 | Metro Private Car | 1924-25 |
| Power | W. J. | 129 South Terrace, Frremantle | Chevrolet | 5023 | Metro Private Car | 1925-26 |
| Power | Wm. | 129 South Terrace Fremantle | Essex | 12389 | Metro Private Car | 1927-28 |
| Power Bros | - | Moora | Chevrolet | M ● 140 | Moora Road Board | 1927-28 |
| Powers Bros | - | - | Essex | M ● 132 | Moora Road Board | 1925-26 |
| Powers Bros | - | Moora | Chevrolet | M ● 140 | Moora Road Board | 1926-27 |
| Poynton | J. | Midland Railway Co | Dodge | 9897 | Metro Private Car | 1926-27 |
| Poynton | J. | Midland Railway Co | Dodge | 9897 | Metro Private Car | 1927-28 |
| Poyser | J. | Bally Bally | Overland 25 H.P. | BE ● 56 | Beverley Road Board | 1917-18 |
| Poyser | J. | Bally Bally | Ford 20 H.P. | BE ● 56 | Beverley Road Board | 1919 |
| Poyser | W. | Ball-Bally | Overland 20 H.P. | BE ● 56 | Beverley Road Board | 1922-23 |
| Poyser | W. | Bally Bally, Beverley | Overland 20 H.P. | BE ● 56 | Beverley Road Board | 1923-24 |
| Poyser | W. H. A. | Bally Bally | Overland | BE ● 56 | Beverley Road Board | 1924-25 |
| Poyser | W. H. A. | Bally Bally | Overland | BE ● 56 | Beverley Road Board | 1925-26 |
| Poyser | W. H. A. | Bally Bally | Overland | BE ● 56 | Beverley Road Board | 1926-27 |
| Poyser | W. J. D. | Beverley | Fiat | BE ● 309 | Beverley Road Board | 1927-28 |
| Poyser Bros | - | - | Fiat Truck | BE ● 23 | Beverley Road Board | 1927-28 |
| Pozzi | J. | Gwalia | Overland 25 H.P. | ML ● 36 | Leonora-Malcolm Road Board | 1917-18 |
| Pozzi | J. | Gwalia | Overland 20 H.P. | ML 36 | Leonora-Malcolm Road Board | 1919 |
| Pozzi | J. | Leonora | Overland | LM ● 34 | Leonora-Malcolm Road Board | 1922-23 |
| Pozzi | J. | Mount George Hotel, Leonora | Overland | LM ● 34 | Leonora-Malcolm Road Board | 1923-24 |
| Pozzi | J. | Mount George Hotel, Leonora | Overland | LM ● 34 | Leonora-Malcolm Road Board | 1924-25 |
| Pozzi | J. | Mount George Hotel | Overland | LM ● 34 | Leonora-Malcolm Road Board | 1925-26 |
| Pozzi | J. | Mount George Hotel | Overland | LM ● 34 | Leonora-Malcolm Road Board | 1926-27 |
| Praed | John | 92 Palmerston Street, Perth | Essex | 1033 | Metro Private Car | 1923-24 |
| Praed | John | 92 Palmerston Street, Perth | Essex | 1033 | Metro Private Car | 1924-25 |
| Praed | John | 92 Palmerston Street, Perth | Essex | 1033 | Metro Private Car | 1925-26 |
| Praed | John | 92 Palmerston Street, Fremantle | Essex | 1033 | Metro Private Car | 1926-27 |
| Praed | John | 92 Palmerston Street, Perth | Essex | 1033 | Metro Private Car | 1927-28 |
| Prain | F. | 25 Sherwood Street, Maylands | Ford | 1257 | Metro Private Car | 1922-23 |
| Prain | Frank | 2 Sherwood Street, Maylands | Ford | 1257 | Metro Private Car | 1923-24 |
| Prain | Frank | 23 Sherwood Street, Maylands | Ford | 1257 | Metro Private Car | 1924-25 |
| Prain | Frank | 23 Sherwood Street, Maylands | Ford | 1257 | Metro Private Car | 1925-26 |
| Prain | Frank | 23 Sherwood Street, Maylands | Ford | 1257 | Metro Private Car | 1926-27 |
| Prain | Frank | 23 Sherwood Street, Maylands | Ford | 1257 | Metro Private Car | 1927-28 |
| Prater | A. J. | Darlington | Overland | 997 | Metro Private Car | 1926-27 |
| Prater | C. H. | 20 Hamilton Street, Boulder | Reo Truck | B 97 | Boulder Municipality | 1927-28 |
| Prater | E. W. | Morawa | Maxwell 20 H.P. | 3 | Perenjori-Morowa Road Board | 1919 |
| Prater | G. W. | Narembeen | Ford | NB ● 192 | Narembeen Road Board | 1927-28 |
| Prater | H. J. | 53 Rockwood Street, Mount Lawley | Ford | 8542 | Metro Private Car | 1925-26 |
| Prater | H. J. | 53 Rookwood Street, Mount Lawley | Ford | 8542 | Metro Private Car | 1926-27 |
| Prater | H. J. | 53 Rookwood Street, Mount Lawley | Essex | 14752 | Metro Private Car | 1927-28 |
| Prater | R. C. | 55 Rushton Street, Victoria Park | Dodge | 2499 | Metro Private Car | 1924-25 |
| Prater | R. C. | 55 Rushton Street, Victoria Park | Dodge | 7445 | Metro Private Car | 1925-26 |
| Prater | R. C. | 55 Rushton Street, Victoria Park | Dodge | 7445 | Metro Private Car | 1926-27 |
| Pratt | - | Karridale | Overland | AU ● 13 | Augusta Road Board | 1925-26 |
| Pratt | A. | Gnowangerup | New Hudson 3½ H.P. Motorcycle | GN 4 | Gnowangerup Road Board | 1916 |
| Pratt | A. | - | New Hudson 3½ H.P. Motorcycle | GN ● 4 | Gnowangerup Road Board | 1917-18 |
