| Sansom | W. | Yelbeni | Essex | KTY ● 111 | Kununoppin-Trayning Road Board | 1926-27 |
| Sansum | L. K. | Bunbury | Chevrolet | BY 76 | Bunbury Municipality | 1926-27 |
| Sansum | W. | Egan Street, Kalgoorlie | Citroen | KMC 135 | Kalgoorlie Municipal Council | 1926-27 |
| Sansum | W. | Bunbury | Chevrolet | BY 76 | Bunbury Municipality | 1927-28 |
| Sant. Health Food Co | - | 116 Barrack Street, Perth | Ford Wagon | 4801 | Metro Private Car | 1923-24 |
| Santryk | J. A. | 4 Wellington Street, Cottesloe Beach | Essex | 1541 | Metro Private Car | 1927-28 |
| Sanwith | W. | Augusta | Ford Truck | AU ● 73 | Augusta Road Board | 1927-28 |
| Sanworth | W. | Margaret River | Ford Truck | AU ● 45 | Augusta Road Board | 1926-27 |
| Sanworth | W. | Margaret River | Ford Truck | AU ● 45 | Augusta Road Board | 1927-28 |
| Sanzier | L. | 185 Thomas Street, Subiaco | Ford Wagon | 8603 | Metro Private Car | 1926-27 |
| Sanzier | Louis E. | 66 Richmond Street, Leederville | Overland | 236 | Metro Private Car | 1922-23 |
| Saporito | M. | 173 Wray Avenue, Fremantle | Ford Wagon | 15879 | Metro Private Car | 1927-28 |
| Sara | Edwin | 26 Longroyd Street, Mount Lawley | Studebaker | 332 | Metro Private Car | 1922-23 |
| Sara | P. | 8 Venn Street, North Perth | Dodge | 2452 | Metro Private Car | 1922-23 |
| Sara | P. P. N. | 57 First Avenue, Mount Lawley | Essex | 13580 | Metro Private Car | 1927-28 |
| Sara & Co | - | 338 Wellington Street, Perth | Ford | 5422 | Metro Private Car | 1925-26 |
| Sara & Cook | - | 338 Wellington Street, Perth | Ford Wagon | 6306 | Metro Private Car | 1924-25 |
| Sara & Cook | - | 338 Wellington Street, Perth | Essex | 13580 | Metro Private Car | 1926-27 |
| Sara & Cook | - | 338 Wellington Street, Perth | Essex | 13633 | Metro Private Car | 1926-27 |
| Sara & Cook | - | 338 Wellington Street, Perth | Ford | 5422 | Metro Private Car | 1926-27 |
| Sara & Cook | - | 338 Wellington Street, Perth | Ford Wagon | 2951 | Metro Private Car | 1927-28 |
| Sara & Cook | - | 338 Wellington Street, Perth | Chevrolet | 7852 | Metro Private Car | 1927-28 |
| Sarche | J. G. | Bencubbin | Reo Truck | MM ● 143 | Mount Marshall Road Board | 1927-28 |
| Sargant | A. | Broomehill | Ford | BH ● 5 | Broomehill Road Board | 1922-23 |
| Sargant | A. | Broomehill | Ford | BH 5 | Broomhill Road Board | 1923 - 1924 |
| Sargeant | A. H. M. | 75 Solomon Street, Beaconsfield | Dodge | 288 | Metro Private Car | 1926-27 |
| Sargent | A. | Warren Road | Essex | KT ● 48 | Kent Road Board | 1925-26 |
| Sargent | A. H. M. | 75 Solomon Street, Beaconsfield | Dodge | 288 | Metro Private Car | 1925-26 |
| Sargent | A. H. M. | 75 Solomon Street, Beaconsfield | Dodge | 288 | Metro Private Car | 1926-27 |
| Sargent | A. H. M. | 75 Solomon Street, Beaconsfield | Dodge | 274 | Metro Private Car | 1926-27 |
| Sargent | A. McD | Warren Road | Dodge | KT ● 21 | Kent Road Board | 1924-25 |
| Sargent | A. McD | Warren Road | Essex | KT ● 48 | Kent Road Board | 1924-25 |
| Sargent | A. McD. | Katanning | Ford 20 H.P. | KRB 48 | Katanning Road Board | 1915 |
| Sargent | A. McD. | Katanning | Ford 20 H.P. | KA 48 | Katanning Road Board | 1916 |
| Sargent | A. McD. | Katanning | Ford 20 H.P. | KA ● 48 | Katanning Road Board | 1917-18 |
| Sargent | A. McD. | Katanning | Ford 20 H.P. | KA 48 | Katanning Road Board | 1919 |
| Sargent | A. McD. | Katanning | Dodge | KA ● 48 | Katanning Road Board | 1922-23 |
| Sargent | A. McD. | Katanning | Dodge | KA ● 48 | Katanning Road Board | 1923-24 |
| Sargent | A. McD. | Warren Road | Essex | KT ● 48 | Kent Road Board | 1926-27 |
| Sargent | A. McD. | Warren Road | Dodge | KT ● 21 | Kent Road Board | 1927-28 |
| Sargent | A. McD. | Warren Road | Essex | KT ● 48 | Kent Road Board | 1927-28 |
| Sargent | Alfred | 25 Nelson Street | Darracq 10 H.P. | F 11 | Fremantle Municipality | 1915 |
| Sargent | Alfred | 25 Nelson Street | Ford 20 H.P. | F 11 | Fremantle Municipality | 1916 |
| Sargent | G. | Ozone Hotel | Singer 8 H.P. Motorcycle | P 306 | Perth Municipality | 1917-18 |
| Sargent | G. | Ozone Hotel, Perth | Chevrolet | 5333 | Metro Private Car | 1925-26 |
| Sargent | G. | Ozone Hotel, Perth | Dodge | 5336 | Metro Private Car | 1926-27 |
| Sargent | Geo. | Ozone Hotel, Perth | Swift | 522 | Metro Private Car | 1923-24 |
| Sargent | M. C. D. | Warren Road | Dodge | KT ● 21 | Kent Road Board | 1926-27 |
| Sargent | McD. | Warren Road | Dodge | KT ● 21 | Kent Road Board | 1925-26 |
| Sargent | O. H | 25 Bay Road, Claremont | Austin | 8402 | Metro Private Car | 1927-28 |
