Cam- - Carc
- Cam-actuated brake
- Cam-and-roller steering gear
- Camber (camber angle)
- Camber stiffness
- Camber wear
- Camping car
- Camshaft
- Camshaft bearing
- Camshaft gear
- Camshaft pump
- Can
- Canopy
- Cantilever spring
- Canvas cloth
- Canvas top
- Capacity
- Capcitor (condenser)
- Capital repair
- Car aerial (car antenna)
- Car body
- Car caravan
- Car carrier (auto carrier)
- Car ferry (ferry-boat)
- Car hood
- Car park
- Car polish
- Car shed
- Car shielding
- Caravan
- Carbon
- Carbon deposit
- Carbon monoxide
- Carburation
- Carburetted mixture
- Carburetter (carbureter, carburettor, carburetor)
- Carburetter backfire
- Carburetter icing
- Carburetter tuning (carburetter adjustment)
