Makes
- C & C Ford1
- C&B1
- C&C1
- C&M4
- C&b Quality Trailer Works2
- C. E. White3
- C.e. Smith Company1
- CAKE2
- CAM1
- CATZ1
- CBGT1
- CBI3
- CEAT1
- CEC1
- CHG1
- CJAY1
- CLEK4
- CM1
- CMI1
- CMS1
- CNG.1
- CODA2
- COLT2
- COOK2
- COX1
- CRG1
- CSC1
- CSI1
- CTC1
- CTI1
- CTR1
- CTW1
- CURT7
- CVG1
- Cabana Coach3
- Cabela's1
- Cable Car2
- Cache2
- Cadillac283
- Cagiva1
- California1
- California Camper2
- Callahan1
- Cambli1
- Campagna3
- Can-Am27
- Can-Am Spyder1
- Capacity17
- Capcen1
- Capitol1
- Capri Camper1
- Car Wear1
- Carado2
- Caravelle3
- Cardinal2
- Cardone4
- Carefree5
- Carefree Powerwinch1
- Careys1
- Cargo Craft1
- Cargo Express5
- Cargo Mate7
- Cargo South2
- Carli Suspension1
- Carlisle5
- Carpenter23
- Carquest10
- Carquest Ecc "blue"1
- Carquest Rig "red"1
- Carraro1
- Carriage11
- Carrier10
- Carrier Transicold9
- Carrol Smith1
- Carry-On2
- Carry-On Trailer1
- Carson3
- Carter7
- Casal1
- Cascade1
- Casco1
- Castrol2
- Catalina4
- Caterpillar30
- Cavalier2
- Ce Howard1
- Ce White4
- Cedar Creek3
- Cemen Tech1
- Cencorp1
- Centennial Tires7
- Centracasa1
- Central Hydraulics1
- Century26
- Century Wrecker2
- Cequent1
- Cfmoto3
- Chalet1
- Chalet Truck Campers1
- Challenger1
- Challenger Door1
- Chalmers3
- Chamberlain1
- Champion64
- Champion Bus4
- Champion Sidecar1
- Chance31
- Changzhou Nanxiashu1
- Chaparral1
- Charge It1
- Chariot Eagle1
- Charles Machine7
- Charleston1
- Charmac2
- Checker12
- Cheetah7
- Cheng Shin1
- Cherokee3
- Chevrolet1251
- Chicago Scooter Company1
- Chicco2
- Chico1
- Chinada1
- Chinook7
- Choice1
- Choice Lite1
- Choo Choo1
- Choreboy1
- Christianson1
- Chrome Neptune1
- Chrysler340
- Chtc Bus1
- Cimarron4
- Cimatti1
- Circle D1
- Circle J2
- Circle W1
- Citroen2
- Ck Motoring1
- Ck Motorsport1
- Clark15
- Clark Brown1
- Clark Equipment1
- Class 11
- Class 1 Es-Key1
- Classic7
- Cleanfuel1
- Clement1
- Clenet1
- Clever Gear1
- Clevite-Pullman1
- Clifford1
- Clipper Towable1
- Clough2
- Club Car4
- Cm Trailers3
- Cm Trucks1
- Co-Op3
- Coach And Equipment32
- Coach House7
- Coachmen209
- Coast1
- Coast Machinery1
- Coastal Moto1
- Cobra8
- Code 31
- Cognito Motorsports1
- Coleman21
- Collier1
- Collins66
- Collins Corbeil1
- Collins Mid Bus1
- Columbia5
- Comanche1
- Combi5
- Comet2
- Command Electronics1
- Command Light1
- Command Start1
- Compass1
- Compressor Mount Kit1
- Compton1
- Con-Tech1
- Concentric1
- Concession Nation1
- Conco3
- Concorde2
- Condere1
- Consolidated Metco, Inc.1
- Construction1
- Consumers Union1
- Contempo1
- Contender1
- Continental30
- Continental Automotive5
- Continental Cargo8
- Continental Tire2
- Continental Trailer1
- Contitrac Aw1
- Contract Manufacturer1
- Control Chassis1
- Converto1
- Coons1
- Cooper118
- Cooper Zeon 2x1
- Coose Trailer1
- Copco1
- Corbeil14
- Corder1
- Cordovan8
- Cordovan Grand Prix1
- Corey1
- Corn Pro1
- Cornell2
- Cornell Pump1
- Cornhusker1
- Corporate2
- Correct Craft1
- Cosco24
- Cosco Kids2
- Cosmopolitan1
- Cosmopolitan Motors1
- Cottrell13
- Cougar Motor1
- Country Coach62
- Country Homes1
- Country Squire1
- Courser2
- Covercraft1
- Covered Wagon Trailers1
- Cowboy1
- Cowtown Sleepers1
- Cozad1
- Cpt Crawler Proven Tech1
- Craftsman1
- Craftsmen4
- Cragar1
- Cragar Classic Wheel1
- Crane35
- Crane Carrier7
- Cravenspeed1
- Creative Mobile Interiors1
- Creek Side1
- Crestline Coach3
- Cross Country2
- Crossroads54
- Crown5
- Crown Coach4
- Cruise Car2
- Cruise Llc4
- Cruiser8
- Cruiser Rv27
- Crysteel3
- Crysteel Truck Hoist1
- Cummins72
- Cummins Clean Fuel Tech1
- Cummins Emission Solution1
- Cummins Filtration1
- Cummins Onan1
- Cummins Power Generation7
- Cummins Westport3
- Curt Manufacturing1
- Curt Retrac1
- Cushman15
- Custom1
- Custom Campers5
- Custom Chrome1
- Custom Coach1
- Custom Designed2
- Custom Fire9
- Custom Truck1
- Custom Truck & Body Works5
- Cutter1
- Cx Automotive1
- Cyber3
- Cyber Helmet1
- Cyberhome1
- Cybex4
- Cycles Peugeot2
- Cyntur1