| Swinstead | H. | Parkers Road | Ford | YL ● 61 | Yilgarn Road Board | 1926-27 |
| Sydney Atkinson Motors Ltd | - | Perth | Studebaker | 15005 | Metro Private Car | 1927-28 |
| Sydney Atkinson Motors Ltd | - | Perth | Studebaker | 15007 | Metro Private Car | 1927-28 |
| Sydney Atkinson Motors Ltd | - | Perth | Studebaker | 2481 | Metro Private Car | 1927-28 |
| Sykes | J. | North Collie | Gray | CO ● 86 | Collie Road Board | 1926-27 |
| Sykes | J. | North Collie | Gray | CO ● 86 | Collie Road Board | 1927-28 |
| Sykes | L. | 277 Perth Street, Subiaco | Ford Wagon | 9028 | Metro Private Car | 1925-26 |
| Sykes | R. | Bunbury | Studebaker 15 H.P. | By 23 | Bunbury Municipality | 1916 |
| Sykes | R. | Merredin | Studebaker 25 H.P. | MD ● 2 | Merredin Road Board | 1917-18 |
| Sykes | R. | 41 Rokeby Road | - | S 37 | Subiaco Municipality | 1919 |
| Sykes | R. | Pithara | Hupmobile | DL ● 1 | Dalwallinu Road Board | 1924-25 |
| Sykes | R. | Pithara | Hupmobile | DL ● 1 | Dalwallinu Road Board | 1926-27 |
| Sykes | Rev, N. F. | Pithara | Hupmobile | DL ● 1 | Dalwallinu Road Board | 1925-26 |
| Sykes | Robert | Pithara P.O. | Studebaker | DL ● 1 | Dalwallinu Road Board | 1922-23 |
| Sykes | Robert | Pithara P.O. | Hupmobile | DL ● 1 | Dalwallinu Road Board | 1923-24 |
| Sykes | Robert | Pithara | Chrysler | DL ● 1 | Dalwallinu Road Board | 1927-28 |
| Sykes | W. J. | 48 James Street, Perth | Studebaker | 728 | Metro Private Car | 1922-23 |
| Sykes | W. J. | 48 James Street, Perth | Studebaker | 728 | Metro Private Car | 1923-24 |
| Sykes | W. J. | 216 Stirling Street, Perth | Studebaker | 728 | Metro Private Car | 1924-25 |
| Sykes | W. J. | 14 Viewway Nedlands | Essex | 13892 | Metro Private Car | 1926-27 |
| Sykes | W. J. | 14 Viewway Nedlands | Fiat | 11808 | Metro Private Car | 1927-28 |
| Sylvester | Alfred | 175 Barker Road, Subiaco | Durrant | 1053 | Metro Private Car | 1924-25 |
| Sylvester | Alfred | 175 Barker Road, Subiaco | Durrant | 1053 | Metro Private Car | 1925-26 |
| Symes | H. J. | Kellerberrin | Singer 3½ H.P. Motorcycle | KE ● 17 | Kellerberrin Road Board | 1917-18 |
| Synnot | A. | Kelmscott | Dodge | 9810 | Metro Private Car | 1926-27 |
| Synnott | O. B. | Roleystone | Overland 4 H.P. | A-K ● 83 | Armadale-Kelmscott Road Board | 1924-25 |
| Tacker | J. | Jull Street, Armadale | Chevrolet | 6893 | Metro Private Car | 1925-26 |
| Talbet Hobbs | General Sir. J. | Keane Street, Cottesloe | Buick | 1233 | Metro Private Car | 1927-28 |
| Talbot | A. | Lord Street, Mount Lawley | Studebaker 20 H.P. | ML 16 | Perth Road Board | 1915 |
| Talbot | W. | Baandee | Buick | KE ● 9 | Kellerberrin Road Board | 1924-25 |
| Talbot | W. | Baandee | Buick | KE ● 9 | Kellerberrin Road Board | 1925-26 |
| Talbot | W. | Baandee | Buick | KE ● 9 | Kellerberrin Road Board | 1926-27 |
| Talbot | W. | Baandee | Buick | KE ● 9 | Kellerberrin Road Board | 1927-28 |
| Talbot Hobbs | Gen. Sir J. | Keane Street, Cottesloe | Buick | 1233 | Metro Private Car | 1924-25 |
| Talbot Hobbs | General Sir J. | Keane Street, Cottesloe | Buick | 1233 | Metro Private Car | 1926-27 |
| Tammin Co | - | Tammin | Chevrolet | ME ● 21 | Meckering Road Board | 1925-26 |
| Tammin Co-op. | - | Tammin | Chevrolet | ME ● 21 | Meckering Road Board | 1922-23 |
| Tammin Co-op. | - | Tammin | Chevrolet | ME ● 21 | Meckering Road Board | 1923-24 |
| Tammin Co-op. | - | Cunderdin | Chevrolet | ME ● 21 | Meckering Road Board | 1924-25 |
| Tammin Co-op. | - | Tammin | Chevrolet | ME ● 21 | Meckering Road Board | 1926-27 |
| Tammin Co-op. | - | Tammin | Oakland | ME ● 270 | Meckering Road Board | 1926-27 |
| Tammin Farmers Co-op. | - | - | Buick | ME ● 251 | Meckering Road Board | 1927-28 |
| Tanner | G. R. | 336 Rokeby Road | - | S 59 | Subiaco Municipality | 1916 |
| Tapper | D. | Forrest Road, Bibra Lake | Chevrolet | 7104 | Metro Private Car | 1925-26 |
| Tapper | D. | Forrest Road, Bibra Lake | Chevrolet | 7104 | Metro Private Car | 1926-27 |
| Tapper | D. | Forrest Road, Bibra Lake | Chevrolet | 7104 | Metro Private Car | 1927-28 |
| Tapper | R. | Bibra Lake | Pontiac | 12158 | Metro Private Car | 1927-28 |
| Tapper | R. D. | Forrest Road, Bibra Lake | Chevrolet Truck | 7125 | Metro Private Car | 1925-26 |
| Tapper | R. D. | Forrest Road, Bibra Lake | Chevrolet Truck | 7125 | Metro Private Car | 1926-27 |
| Tasker | E. | 79 Newcastle Street Perth | Hudson | 10192 | Metro Hire or Trade | 1926-27 |
