| Motor Parts Ltd | - | Wellington Street, Perth | Ford Wagon | 13192 | Metro Private Car | 1926-27 |
| Motor Vehicles Ltd | - | 88 Railway Parade, West Perth | Dealers | 20248 | Metro Dealers Car | 1927-28 |
| Mott | B. B. | Kellerberrin | Bean Truck | KE ● 250 | Kellerberrin Road Board | 1927-28 |
| Mott | C. | Dumbleyung | Studebaker | DU ● 56 | Dumbleyung Road Board | 1923-24 |
| Mott | C. | Dumbleyung | Studebaker | DU ● 56 | Dumbleyung Road Board | 1924-25 |
| Mott | C. | Dumbleyung | Studebaker | DU ● 56 | Dumbleyung Road Board | 1925-26 |
| Mott | C. | Dumbleyung | Studebaker | DU ● 56 | Dumbleyung Road Board | 1927-28 |
| Mott | H | Dumbleyung | Studebaker | DU ● 101 | Dumbleyung Road Board | 1926-27 |
| Mott | H. | Dumbleyung | Studebaker | DU ● 101 | Dumbleyung Road Board | 1925-26 |
| Mott | H. | Dumbleyung | Studebaker | DU ● 101 | Dumbleyung Road Board | 1927-28 |
| Mott | Mrs M. | Brookton | Ford | BO ● 51 | Brookton Road Board | 1924-25 |
| Mott | Mrs M. A. | Brookton | Ford | BO ● 51 | Brookton Road Board | 1925-26 |
| Mott | Mrs M. A. | Brookton | Ford | BO ● 51 | Brookton Road Board | 1926-27 |
| Mott | Mrs M. A. | Brookton | Ford | BO ● 51 | Brookton Road Board | 1927-28 |
| Mott | Roland | Brookton | Ford | BO ● 98 | Brookton Road Board | 1926-27 |
| Mott | Roland | Brookton | Ford | BO ● 98 | Brookton Road Board | 1927-28 |
| Mott | W. | Dumbleyung | Studebaker | DU ● 16 | Dumbleyung Road Board | 1926-27 |
| Mott | W. | Brookton | Federal-Knight Truck | BO ● 29 | Brookton Road Board | 1927-28 |
| Mott | W. | Dumbleyung | Studebaker | DU ● 16 | Dumbleyung Road Board | 1927-28 |
| Mott | Walter | Dumbleyung | Overland | DU ● 36 | Dumbleyung Road Board | 1923-24 |
| Mott & Johns | - | - | Overland 35 H.P. | NM 3 | Norseman Municipality | 1915 |
| Motteram | H. | 1 Dunbar Street, Claremont | Chevrolet | 8021 | Metro Private Car | 1925-26 |
| Motteram | H. | 1 Dunbar Street, Claremont | Chevrolet | 8021 | Metro Private Car | 1926-27 |
| Motteram | J. H. | 3 Dunbar Street, Claremont | Triumph | 95 | Metro Motorcycle | 1922-23 |
| Motteram | M. E. | Dunbar Road, Claremont | Motorcycle | C 99 | Claremont Municipality | 1917-18 |
| Motteram | M. E. | Dunbar Road, Claremont | - | C 99 | Claremont Municipality | 1919 |
| Mottram | C. F. | 25 Sunbury Road, Victoria Park | Ford | 2278 | Metro Private Car | 1927-28 |
| Mottram | C. W. | Manjimup | Dodge | WA ● 101 | Manjimup Road Board | 1925-26 |
| Mottram | C. W. | Manjimup | Dodge | WA ● 101 | Manjimup Road Board | 1926-27 |
| Mottram | C. W. | Manjimup | Dodge | WA ● 101 | Manjimup Road Board | 1927-28 |
| Mottram | D. | Manjimup | Ford Van | WA ● 214 | Manjimup Road Board | 1927-28 |
| Mottram | F. L. | cnr Francis & William streets, Perth | Dodge | 5603 | Metro Private Car | 1924-25 |
| Mottram | F. L. | Cnr. Francis & William Street, Perth | Dodge | 5603 | Metro Private Car | 1925-26 |
| Mottram | F. W. | Gnaraloo Station | Ford 20 H.P. | GM ● 33 | Gascoyne-Minilya Road Board | 1919 |
| Mottram | G. | Hooper Street | Buick 20 H.P. | P 319 | Perth Municipality | 1917-18 |
| Mottram | G. | Hooper Street | Buick 20 H.P. | P 319 | Perth Municipality | 1919 |
| Mottram | J. H. | Dunbar Road, Claremont | - | C 63 | Claremont Municipality | 1919 |
| Mottram | J. J. | Manjimup | Studebaker | WA ● 172 | Manjimup Road Board | 1926-27 |
| Mottram | J. J. | Manjimup | Studebaker | WA ● 172 | Manjimup Road Board | 1927-28 |
| Mottram | T. H. | 237 Charles Street | F.N. 2½ H.P. Motorcycle | P 1296 | Perth Municipality | 1919 |
| Mottram | W. | Manjimup | Ford | WA ● 16 | Manjimup Road Board | 1925-26 |
| Mottram | William | Manjimup | Ford | WA ● 16 | West Arthur Road Board | 1922-23 |
| Mottram | William | Manjimup | Ford | WA ● 16 | Warren Road Board | 1923-24 |
| Mottram | William | Manjimup | Dodge | WA ● 16 | Warren Road Board | 1924-25 |
| Mottram | WM. | Manjimup | Ford Truck | WA ● 192 | Manjimup Road Board | 1926-27 |
| Mottram | Wm. | Manjimup | Ford Truck | WA ● 192 | Manjimup Road Board | 1927-28 |
| Mouch | C. | Millbrook | Studebaker | A ● 10 | Albany Road Board | 1925-26 |
| Mouchemore | B. B. | Augusta River | Ford 20 H.P. | AU 2 | Augusta Road Board | 1915 |
| Mouchemore | B. B. | Augusta River | Overland 30 H.P. | AU 3 | Augusta Road Board | 1915 |
| Mouchemore | B. B. | Augusta | Ford 20 H.P. | AU 2 | Augusta Road Board | 1916 |
