Makes
- M&O1
- M-B1
- M.b. Sturgis2
- M.s.a.1
- MAC2
- MAN1
- MATE1
- MAY1
- MCI103
- MFI1
- MG17
- MGB1
- MGM1
- MH1
- MHT2
- MICO1
- MOOG10
- MOZO1
- MPH1
- MPI1
- MST1
- MT&G1
- MTI1
- MTS3
- MV-11
- MYCO1
- Mac Data Torq1
- Mac Lander1
- Mac Tools1
- Mac Trailers2
- Mack432
- Mack Trunnion1
- Madrid1
- Magic Tilt2
- Magna Electronics1
- Magna Steyr1
- Magnetek3
- Magnum4
- Magura1
- Mahindra1
- Maintainer10
- Majestic1
- Majorway1
- Malaguti1
- Malibu Boats1
- Mallard3
- Malone Auto Racks1
- Mammoth1
- Man Cave1
- Manac8
- Manchester2
- Manchester Tank1
- Mando4
- Manitex/Pm1
- Mansfield2
- Marathon7
- Maremont2
- Mariah1
- Marion3
- Marion Body Works5
- Mark Iii2
- Marmon7
- Marmon-Herrington2
- Marque5
- Marquez1
- Marshall1
- Marshall Gas1
- Martinelli1
- Maserati52
- Master1
- Master Brake1
- Master Lock1
- Master Pro1
- Master Van1
- Mastercraft12
- Masterlock4
- Masterpro1
- Matlock1
- Matrix Headgear1
- Maurer2
- Mavis1
- Maxi-Cosi6
- Maxi-Metal1
- Maxim2
- Maxim Motor1
- Maxjax1
- Maxon3
- Maxvan1
- Maxxair1
- Maxxd1
- Mazda235
- Mc Cabe Powers1
- Mc Ceary1
- McLaren15
- Mcclain2
- Mccoy Miller8
- Mccreary2
- Mcculloch Technology1
- Mcd 78101
- Mcelrath Trailers5
- Mckenzie20
- Mclaughlin2
- Mcneilus30
- Mcquay Norris2
- Me Too1
- Meccatune1
- Medix1
- Medtec8
- Mekra Lang3
- Mercedes1
- Mercedes Royale1
- Mercedes-Benz643
- Mercedes-Maybach31
- Mercury342
- Merhow2
- Merit2
- Meritor40
- Meritor Wabco7
- Merkur1
- Merritt1
- Merritt Angel Guard1
- Merritt Commodity Trailer1
- Mertz2
- Method Race Wheels1
- Metro Link1
- Metrotrans1
- Metzeler5
- Mevotech1
- Meyer1
- Meyle1
- Miamoda2
- Michelin19
- Mickey1
- Mickey Thompson4
- Mickey Truck Bodies1
- Micro Bird104
- Micro Dot1
- Microdot1
- Mictuning1
- Mid Bus28
- Mid Continent1
- Mid-West Choppers1
- Midas12
- Midland3
- Midland Brake4
- Midland Grau1
- Midland Ross3
- Midsoda1
- Midway1
- Midway Specialty Vehicles1
- Midwest4
- Midwest Automotive Design3
- Midwest Electric1
- Midwest Fire5
- Mighty Product Center1
- Milan2
- Miles1
- Miles-Kimball1
- Milestar2
- Millennium1
- Millennium Transit2
- Miller7
- Miller Wldng1
- Milwaukee1
- Mini48
- Minibus1
- Minnesota Valley1
- Mirada5
- Mirage2
- Mitsubishi180
- Mitsubishi Caribbean22
- Mitsubishi Fuso60
- Mo Trailer2
- Mo Trailers1
- Mobil2
- Mobil Traveler4
- Mobile Medical1
- Mobile Scout4
- Mobile Suites4
- Mobile Traveler2
- Mobile-Tech2
- Mobility Conquest1
- Mobility Services1
- Mobility Specialists2
- Mobility Trans2
- Mobility Ventures3
- Mobility Works2
- Mobilityworks3
- Modern Industries1
- Modular1
- Moffett Mounty1
- Mohave2
- Mohawk13
- Molly Trolley2
- Moloney2
- Momentum Fuel Tech1
- Monaco14
- Monaco Coach77
- Monaco Rv6
- Monarch4
- Monitor2
- Monon11
- Monroe6
- Monte Carlo1
- Monto1
- Moody1
- Mopar65
- Mor Ryde2
- Morbark7
- Morgan5
- Morgan Motor Company1
- Morgan Olson6
- Morgan Trailer1
- Morini1
- Moritz1
- Moroney2
- Morris1
- Morryde10
- Moss Motors3
- Motac1
- Motion Pro1
- Motiv13
- Moto Guzzi18
- Moto Metal1
- Moto Morini1
- Motobecane3
- Motomaster2
- Motor Coach19
- Motor Wheel2
- Motorcar1
- Motorcar Parts1
- Motorcraft1
- Motovan1
- Mullins1
- Multi-Mile11
- Multiplex6
- Multiprens1
- Multiquip6
- Muncie Power1
- Murray1
- Mustang1
- Mustang Trailer1
- Mv Agusta6
- Mvt-900a1
- Mw Company1