| Minilya Pastoral Co | - | Minilya | Graham Truck | GM ● 53 | Gascoyne Minilya Road Board | 1927-28 |
| Minilya Pastoral Co | - | Minilya | Graham | GM ● 60 | Gascoyne Minilya Road Board | 1927-28 |
| Minilya Pastoral Co | - | Minilya | Jewett | GM ● 61 | Gascoyne Minilya Road Board | 1927-28 |
| Minister for Public Works | - | - | - | P 540 | Perth Municipality | 1915 |
| Minister for Public Works | - | - | - | P 540 | Perth Municipality | 1916 |
| Minister for Public Works | - | - | Ford 20 H.P. | P 796 | Perth Municipality | 1917-18 |
| Minnivale Co-op. Stores | - | - | Dealers | D ● 205 | Dowerin Road Board | 1927-28 |
| Minogue | F. | Lake Grace | Gray Truck | LG ● 64 | Lake Grace Road Board | 1925-26 |
| Minoque | F. | Lake Grace | Gray Truck | LG ● 64 | Lake Grace Road Board | 1926-27 |
| Mintjelly | R. M. | Nelson Crescent, East Perth | Chevrolet | 9490 | Metro Private Car | 1927-28 |
| Mintoff | G. E. | Guildford Road, Maylands | Ford | 6380 | Metro Private Car | 1925-26 |
| Mintoff | G. E. | Guildford Road, Maylands | Ford | 6380 | Metro Private Car | 1926-27 |
| Mintoft | G. E. | Guildford Road, Maylands | Ford | 6380 | Metro Private Car | 1927-28 |
| Mir | John | Canning Vale | Chevrolet Truck | 12713 | Metro Private Car | 1927-28 |
| Mires | Percy | Kanowna | B.S.A. 3½ H.P. Motorcycle | CNE 3 | North East Coolgardie Road Board | 1916 |
| Mischler | C. | Bridgetown | Overland Truck | B ● 165 | Bridgetown Road Board | 1926-27 |
| Mischler | C. | Bridgetown | Overland | B ● 165 | Bridgetown Road Board | 1927-28 |
| Miskavitch | S. | Brunswick | Dodge | H ● 187 | Harvey Road Board | 1927-28 |
| Missen | A. L. | 28 Servitus Street, Swanbourne | Chrysler | 14363 | Metro Private Car | 1927-28 |
| Missen & Mills | - | Barnfield Road, Claremont | Chevrolet Wagon | 12380 | Metro Private Car | 1927-28 |
| Mitchell | - | Aborigines Department Roebourne | Overland | R ● 52 | Roebourne Road Board | 1925-26 |
| Mitchell | . | Irwin | Morris-Cowley | IR ● 29 | Irwin Road Board | 1926-27 |
| Mitchell | A. | Orient Hotel | Studebaker 28 H.P. | F 2 | Fremantle Municipal Council | 1919 |
| Mitchell | A. | Fremantle Tramways | Jewett | 1579 | Metro Private Car | 1924-25 |
| Mitchell | A. | Fremantle Tramways Fremantle | Jewett | 1579 | Metro Private Car | 1925-26 |
| Mitchell | A. E. | 23 Dalkeith Road, Nedlands | Overland | 11856 | Metro Private Car | 1926-27 |
| Mitchell | A. O. | Northampton | Buick 20 H.P. | NR 15 | Northampton Road Board | 1919 |
| Mitchell | A. O. | Northampton | Studebaker | NR ● 15 | Northampton Road Board | 1924-25 |
| Mitchell | A. O. | Northampton | Studebaker | NR ● 15 | Northampton Road Board | 1925-26 |
| Mitchell | A. O. | Northampton | Studebaker | NR ● 15 | Northampton Road Board | 1926-27 |
| Mitchell | A. O. | Northampton | Studebaker | NR ● 15 | Northampton Road Board | 1927-28 |
| Mitchell | A. W. | Chidlow | Ford | GE ● 47 | Greenmount Road Board | 1926-27 |
| Mitchell | A. W. | Chidlow | Ford | GE ● 47 | Greenmount Road Board | 1927-28 |
| Mitchell | Albert | Orient Hotel | Studebaker 28 H.P. | F 2 | Fremantle Municipality | 1915 |
| Mitchell | Albert | Orient Hotel | Studebaker 28 H.P. | F 2 | Fremantle Municipality | 1916 |
| Mitchell | Albert | Orient Hotel, Fremantle | Studebaker 25 H.P. | F 2 | Fremantle Municipal Council | 1917-18 |
| Mitchell | Arthur | Northampton | Buick 25 H.P. | NR ● 15 | Northampton Road Board | 1922-23 |
| Mitchell | Arthur | Northampton | Buick 25 H.P. | NR ● 15 | Northampton Road Board | 1923-24 |
| Mitchell | Bernard Francis | Mount Magnet | Indian Motorcycle | MA ● 10 | Mount Magnet Road Board | 1922-23 |
| Mitchell | C. | 44 King's Park Road | E.M.F. 30 H.P. | P 105 | Perth Municipality | 1915 |
| Mitchell | C. | 44 Kings Park Road | Dodge 20 H.P. | P 1028 | Perth Municipality | 1917-18 |
| Mitchell | C. | 44 King's Park Road | Dodge 20 H.P. | P 1028 | Perth Municipality | 1919 |
| Mitchell | C. | Gullewa | Triumph 3½ H.P. Motorcycle | YA ● 8 | Yalgoo Road Board | 1919 |
| Mitchell | C. | Katanning | Humber Lorry | KA ● 113 | Katanning Road Board | 1924-25 |
| Mitchell | C. | Gullewa | Buick | YA ● 6 | Yalgoo Road Board | 1925-26 |
| Mitchell | C. | Gullewa | Ford | YA ● 11 | Yalgoo Road Board | 1925-26 |
| Mitchell | C. | Barnong Station, Yalgoo | Ford | YA ● 45 | Yalgoo Road Board | 1925-26 |
| Mitchell | C. | Katanning | Humber Lorry | KA ● 113 | Katanning Road Board | 1925-26 |
| Mitchell | C. | 44 Kings Park Road, Perth | Buick | 1028 | Metro Private Car | 1926-27 |
| Mitchell | C. | Gullewa | Ford | YA ● 11 | Yalgoo Road Board | 1926-27 |
