| Pages Bros | - | Gosnells | I.H.C. Lorry | GS ● 11 | Gosnells Road Board | 1924-25 |
| Pages Bros | - | Gosnells | Commerce Wagon | 3763 | Metro Hire or Trade | 1926-27 |
| Pages Bros. | - | Gosnells | Willy's-Knight Lorry | GS ● 2 | Gosnells Road Board | 1923-24 |
| Pahl | L. | 29 Hawkstone Street, Cottesloe | Ford | 1562 | Metro Private Car | 1924-25 |
| Pahl | L. | 96 McCourt Street, West Leederville | Ford | 1562 | Metro Private Car | 1925-26 |
| Pahl | L. | 96 McCourt Street, West Leederville | Ford | 1562 | Metro Private Car | 1926-27 |
| Pahl | L. C. | 96 McCourt Street, Leederville | Ford | 12030 | Metro Private Car | 1927-28 |
| Paifreyman | A. | 152 Sixth Avenue, Inglewood | Overland | 8318 | Metro Private Car | 1926-27 |
| Paill | A. S. | Walliston | Humber | DR ● 23 | Darling Range Road Board | 1926-27 |
| Pailthorpe | V. | 29 Stirling Street, Perth | Sunbeam 2¾ | P 244 | Perth Municipality | 1916 |
| Pailthorpe | V. D. | Kojonup | Studebaker | KO ● 65 | Kojonup Road Board | 1924-25 |
| Pailthorpe | V. D. | Kojonup | Pontiac | KO ● 153 | Kojonup Road Board | 1927-28 |
| Paine | J. D. | Kalamunda | Chevrolet Truck | DR ● 40 | Darling Range Road Board | 1927-28 |
| Paine & Sons | G. | Kojonup | Chevrolet Truck | KO ● 169 | Kojonup Road Board | 1927-28 |
| Pains | S. | Wellington Mills | Ford Lorry | DA ● 47 | Dardanup Road Board | 1925-26 |
| Pains | S. | Wellington Mills | Ford Lorry | DA ● 47 | Dardanup Road Board | 1926-27 |
| Pains | S. | Wellington Millls | Ford Lorry | DA ● 47 | Dardanup Road Board | 1927-28 |
| Painter | A. | East Wagin | Studebaker | W ● 48 | Wagin Road Board | 1925-26 |
| Painter | A. | East Wagig | Studebaker | W ● 48 | Wagin Road Board | 1926-27 |
| Painter | A. | East Wagin | Studebaker | W ● 48 | Wagin Road Board | 1927-28 |
| Painter | Alexander | Wagin | Studebaker | W ● 48 | Wagin Road Board | 1922-23 |
| Painter | Alexander | Wagin | Studebaker | W ● 48 | Wagin Road Board | 1923-24 |
| Painter | Alexander | Wagin | Studebaker | W ● 48 | Wagin Road Board | 1924-25 |
| Painter | T. | 29 Angove Street | Ford 20 H.P. | P 1205 | Perth Municipality | 1919 |
| Painter | T. | Mundaring | Ford | GE ● 18 | Greenmount Road Board | 1923-24 |
| Painter | T. | Mundaring | Ford | GE ● 40 | Greenmount Road Board | 1924-25 |
| Painter | T. D G. | Mundaring | Rugby | GE ● 41 | Greenmount Road Board | 1927-28 |
| Painter | T. D. G. | Mundaring | Dodge | GE ● 41 | Greenmount Road Board | 1924-25 |
| Painter | T. D. G. | Mundaring | Dodge | GE ● 41 | Greenmount Road Board | 1925-26 |
| Painter | T. D. G. | Mundaring | Dodge | GE ● 41 | Greenmount Road Board | 1926-27 |
| Painter | T. R. | Mundaring | Ford Truck | GE ● 18 | Greenmount Road Board | 1924-25 |
| Painter | William | Wagin | Dodge | W ● 33 | Wagin Road Board | 1922-23 |
| Painter | William | Wagin | Dodge | W ● 33 | Wagin Road Board | 1923-24 |
| Painter | William | Wagin | Dodge | W ● 33 | Wagin Road Board | 1924-25 |
| Painter | William | East Wagin | Dodge | W ● 33 | Wagin Road Board | 1925-26 |
| Painter | William | East Wagin | Dodge | W ● 33 | Wagin Road Board | 1926-27 |
| Painter | William | East Wagin | Dodge | W ● 33 | Wagin Road Board | 1927-28 |
| Paisley | Mrs Dorothy | 21 Alban Street, Mount Lawley | E.M.F. | 424 | Metro Private Car | 1923-24 |
| Palandri | A. F. | Busselton | Dodge | BN 64 | Municipality of Busselton | 1925-26 |
| Palandri | A. F. | Busselton | Dodge | BN 64 | Municipality of Busselton | 1927-28 |
| Palasis | A. J. | Manjimup | Ford Truck | WA ● 242 | Manjimup Road Board | 1927-28 |
| Palatine Ass Co Ltd | - | Saint George's Terrace, Perth | Fiat | 8886 | Metro Private Car | 1926-27 |
| Palatine Assn. Co Ltd | - | Saint George's Terrace, Perth | Fiat | 8886 | Metro Private Car | 1925-26 |
| Palatine Assn. Co Ltd | - | Saint George's Terrace, Perth | Fiat | 8886 | Metro Private Car | 1927-28 |
| Palbish | N. T | Williams | Ford | WL ● 74 | Williams Road Board | 1926-27 |
| Palendri | A. F. | Busselton | Dodge | BN 64 | Municipality of Busselton | 1926-27 |
| Palethorpe | Jessie | Beatty | Ford Lorry | MW ● 55 | Mullewa Road Board | 1925-26 |
| Palethorpe | Jessie | Beatty | Ford | MW ● 55 | Mullewa Road Board | 1926-27 |
| Palethorpe | Jessie | Beatty | Ford | MW ● 55 | Mullewa Road Board | 1927-28 |
| Paletti | J. | Cue | Chevrolet Truck | CD ● 56 | Cue-Day Dawn Road Board | 1927-28 |
