| Metters' Ltd | - | 762 Hay Street | Ford 20 H.P. | P 450 | Perth Municipality | 1917-18 |
| Metts Ltd | - | Hay Street, Perth | Buick | 5188 | Metro Private Car | 1926-27 |
| Metzke | A. | - | Ford 15 H.P. | LA ● 14 | Lawlers Road Board | 1917-18 |
| Metzke | A. | Darlot | Ford | LA ● 10 | Lawlers Road Board | 1923-24 |
| Metzke | A. | Darlot | Ford | LA ● 10 | Lawlers Road Board | 1924-25 |
| Metzke | A. | Darlot | Ford | LA ● 10 | Lawlers Road Board | 1925-26 |
| Metzke | A. | Darlot | Ford | LA ● 10 | Lawlers Road Board | 1927-28 |
| Meuir | G. | King Edward Road, Osborne Park | Ford | P ● 192 | Perth Road Board | 1927-28 |
| Meurs | John G. | 68 High Street, Fremantle | Ford | 1844 | Metro Private Car | 1923-24 |
| Meus & Wimbridge | - | Gabanintha | Buick | NN ● 7 | Nanine Road Board | 1923-24 |
| Meus & Wimbridge | - | Gabanintha | Buick | NN ● 7 | Nannine Road Board | 1924-25 |
| Meus & Wimbridge | - | Gabanintha | Buick | NN ● 7 | Nannine Road Board | 1926-27 |
| Meustead | R. W. T. | Grave Hill | Ford | GN ● 28 | Gnowangerup Road Board | 1922-23 |
| Mewbold | E. | 24 Samson Street, Beaconsfield | Ford Truck | 6095 | Metro Private Car | 1924-25 |
| Mewburn | G. R | Burracoppin | Swift | WT ● 5 | Westonia Road Board | 1926-27 |
| Mewburn | G. R | Burracoppin | Ford Truck | WT ● 22 | Westonia Road Board | 1926-27 |
| Mewburn | G. R. | Burracoppin | Ford Truck | WT ● 22 | Westonia Road Board | 1925-26 |
| Mewburn | G. R. | Burracoppin | Jewett | WT ● 5 | Westonia Road Board | 1927-28 |
| Mewett | A. H. | Yallingup | Ford | SU ● 20 | Sussex Road Board | 1923-24 |
| Mewett | A. H. | Yallingup | Ford Truck | SU ● 20 | Sussex Road Board | 1925-26 |
| Mewett | A. H. | Yallingup | Ford Truck | SU ● 20 | Sussex Road Board | 1926-27 |
| Mewett | A. H. | Yallingup | Ford Truck | SU ● 20 | Sussex Road Board | 1927-28 |
| Mews | H. J. | 136 Cambridge Street, Leederville | Ford Wagon | 3035 | Metro Private Car | 1924-25 |
| Mews | H. J. | 136 Cambridge Street, West Leederville | Ford Wagon | 3035 | Metro Hire or Trade | 1925-26 |
| Mews | H. J. | 136 Cambridge Street Leederville | Ford Van | 8052 | Metro Private Car | 1925-26 |
| Mews | H. J. | 136 Cambridge Street, Leederville | Ford Van | 8052 | Metro Private Car | 1926-27 |
| Mews | H. J. | 136 Cambridge Street, Leederville | Ford Van | 8052 | Metro Private Car | 1927-28 |
| Mews | J. C. | Albany | Ford 20 H.P. | A 3 | Albany Municipality | 1915 |
| Mews | J. C. | Albany | Ford 20 H.P. | A 18 | Albany Municipality | 1915 |
| Mews | J. C. | Albany | Ford 20 H.P. | A 3 | Albany Municipality | 1916 |
| Mews | J. C. | Albany | Ford 20 H.P. | A 18 | Albany Municipality | 1916 |
| Mews | J. C. | Albany | Overland | A 61 | Municipality of Albany | 1924-25 |
| Mews | J. C. | Albany | Overland | A 61 | Municipality of Albany | 1925-26 |
| Mews | J. C. | Albany | - | A 61 | Municipality of Albany | 1926-27 |
| Mews | J. C. | Albany | Overland Truck | A 143 | Albany Municipality | 1927-28 |
| Mews | J. J. | Victoria Avenue, Claremont | Chevrolet | 6088 | Metro Private Car | 1924-25 |
| Mews | J. W. | Ulster Road, Albany | Studebaker 25 H.P. | A 3 | Albany Municipality | 1919 |
| Mews | W. | Meenaar | Ford 20 H.P. | N 15 | Northam Road Board | 1916 |
| Mews | W. | Bannister Street, Fremantle | Ford van | 1982 | Metro Private Car | 1924-25 |
| Mews | W. | Bannister Street, Fremantle | Ford Van | 1982 | Metro Private Car | 1925-26 |
| Mews | W. | Fremantle | Ford Van | 1982 | Metro Private Car | 1926-27 |
| Mews | Walter | Bannister Street, Fremantle | Ford Truck | 12395 | Metro Private Car | 1927-28 |
| Mews | Walter | Bannister Street, Fremantle | Chevrolet | 15837 | Metro Private Car | 1927-28 |
| Mews & Wimbridge | - | Hill View, Gabanintha | Buick 20 H.P. | NN 7 | Nannine Road Board | 1919 |
| Mews & Wimbridge | - | Hill View, Gabanintha | Buick 20 H.P. | - | Nannine Road Board | 1922-23 |
| Mews & Wimbridge | - | Gabanintha | Chevrolet | NN ● 19 | Nannine Road Board | 1927-28 |
| Meyer | G. F. | Broomehill | Dodge | BH ● 5 | Broomehill Road Board | 1924-25 |
| Meyer | G. F. | Broomehill | Dodge | BH ● 5 | Broomehill Road Board | 1925-26 |
| Meyer | G. F. | Broomehill | Dodge | BH ● 5 | Broomehill Road Board | 1926-27 |
| Meyer | G. F. | Broomehill | Dodge | BH ● 5 | Broomehill Road Board | 1927-28 |
