| Pitchford & Dorter | | Landor Station | Chevrolet Truck | MK ● 43 | Meekatharra Road Board | 1924-25 |
| Pitchie | E. B. | 23 Mends Street, South Perth | Citroen | 9151 | Metro Private Car | 1927-28 |
| Pithara Co-op Co | - | Pithara | Overland | DL ● 32 | Dalwallinu Road Board | 1925-26 |
| Pithara Co-op. | - | Pithara | Overland | DL ● 32 | Dalwallinu Road Board | 1924-25 |
| Pithara Co-op. Co | - | Pithara | Overland | DL ● 32 | Dalwallinu Road Board | 1922-23 |
| Pithara Co-op. Co | - | Pithara | Overland | DL ● 32 | Dalwallinu Road Board | 1923-24 |
| Pithara Co-op. Co | - | Pithara | Overland | DL ● 32 | Dalwallinu Road Board | 1926-27 |
| Pithara Co-op. Co | - | Pithara | Overland | DL ● 32 | Dalwallinu Road Board | 1927-28 |
| Pitman | C. H. | 66 Grant Street, Cottesloe | Standard | 9167 | Metro Private Car | 1925-26 |
| Pitman | C. H. | 66 Grant Street, Cottesloe | Standard | 9167 | Metro Private Car | 1926-27 |
| Pitman | C. H. | 975 Hay Street, Perth | Rugby | 1727 | Metro Private Car | 1927-28 |
| Pitman | E. M. | 7 Bruce Street, Nedlands | Peugeot | 11870 | Metro Private Car | 1926-27 |
| Pitman | F. A. | Bulwer Street Perth | Chrysler | 6338 | Metro Private Car | 1927-28 |
| Pitman | F. H. | 172 Central Avenue, Inglewood | Ford | 5581 | Metro Private Car | 1926-27 |
| Pitman | F. H. | 172 Central Avenue, Inglewood | Ford | 5581 | Metro Private Car | 1927-28 |
| Pitman | F. L. | Tareena Street, Nedlands | Peugeot | 5425 | Metro Private Car | 1924-25 |
| Pitman | H. | Builders Exchange | Douglas 2¾ H.P. Motorcycle | P 599 | Perth Municipality | 1915 |
| Pitman | H. C. | Nedlands Park | - | CL 8 | Claremont Road Board | 1916 |
| Pitman | H. C. | 47 Bruce Street, Nedlands | Fiat | 5557 | Metro Private Car | 1924-25 |
| Pitman | H. C. | Cnr. Hardy & Merriwa Street, Nedlands | Fiat | 5557 | Metro Private Car | 1925-26 |
| Pitman | H. C. | Cnr. Hardy & Merriwa Street, Nedlands | Fiat | 5557 | Metro Private Car | 1926-27 |
| Pitman | H. C. | Cnr. Hardy & Merriwa Street, Nedlands | Fiat | 5557 | Metro Private Car | 1927-28 |
| Pitman | Mrs V. H. | Donnybrook | Overland | PE ● 4 | Preston Road Board | 1922-23 |
| Pitrard | A. J. | 711 Newcastle Street, Leederville | Fiat | 2638 | Metro Private Car | 1927-28 |
| Pitt | Chas. | Denmark | Ford | DE ● 77 | Denmark Road Board | 1927-28 |
| Pitt & Watson | - | 383 Charles Street, Perth | Ford | 4564 | Metro Private Car | 1927-28 |
| Pittard | A. J. | 711 Newcastle Street, Leederville | Fiat | 2638 | Metro Private Car | 1924-25 |
| Pittard | A. J. | 711 Newcastle Street, Leederville | Fiat | 2638 | Metro Private Car | 1925-26 |
| Pittard | A. J. | Leederville | Fiat | 2638 | Metro Private Car | 1926-27 |
| Pittard | Alfred | 71 Newcastle Street, Leederville | Fiat | 2638 | Metro Private Car | 1923-24 |
| Pittard | G. M. | 375 Bulwer Street, Perth | Chrysler | 14771 | Metro Private Car | 1927-28 |
| Pittard | Mary M. | 711 Newcastle Street, Leederville | Studebaker | 3521 | Metro Hire or Trade | 1927-28 |
| Pittard | W. M. | 711 Newcastle Street, Leederville | Studebaker | 3521 | Metro Hire or Trade | 1926-27 |
| Pittelkow | H. | Woodanilling | Ford 19 H.P. | WO ● 7 | Woodanilling Road Board | 1922-23 |
| Pittelkow | H. | Woodanilling | Ford 19 H.P. | WO ● 7 | Woodanilling Road Board | 1923-24 |
| Pittelkow | H. | Woodanilling | Dodge | WO ● 7 | Woodanilling Road Board | 1925-26 |
| Pittelkow | H. | Woodanilling | Dodge | WO ● 7 | Woodanilling Road Board | 1926-27 |
| Pittelkow | L. L. H. | Woodanilling | B.S.A. 4¼ H.P. Motorcycle | WO 7 | Woodanilling Road Board | 1916 |
| Pittelkow | L. L. H. | - | B.S.A. Motorcycle | WO ● 7 | Woodanilling Road Board | 1917-18 |
| Pittelkow | L. L. H. | - | B.S.A. | WO ● 7 | Woodanilling Road Board | 1919 |
| Pitter Bros | - | Albert Street, Osborne Park | Chevrolet | P ● 216 | Perth Road Board | 1927-28 |
| Pittman | G. R. | Donnybrook | Overland 25 H.P. | PE 4 | Preston Road Board | 1916 |
| Pittman | G. R. | Donnybrook | Overland 25 H.P. | PE ● 4 | Preston Road Board | 1917-18 |
| Pittman | G. R. | Donnybrook | Overland 25 H.P. | PE ● 4 | Preston Road Board | 1919 |
| Pittmann | G. R. | - | E.M.F. 30 H.P. | PRB 4 | Preston Road Board | 1915 |
| Pitts | A. | Worsley | Ford | H ● 223 | Harvey Road Board | 1927-28 |
| Pix | S. | Wagin | Chevrolet | WN 104 | Wagin Municipality | 1927-28 |
| Pkye | F. | 21 Coode Street, Mount Lawley | Austin | 7804 | Metro Private Car | 1927-28 |
| Place | D. | Dowerin | Ford 18-8 H.P. | D ● 6 | Dowerin Road Board | 1922-23 |
| Place | D. | Dowerin | Ford 18-8 H.P. | D ● 6 | Dowerin Road Board | 1923-24 |