- connecting pin, terminal stud
- connecting strip, connecting rail
- control, triggering
- crank, start
- clamp, pinch, squeeze
- charge, supercharge; (elektrisch) charge
- cut, aperture
- convoy, motorcade
- car body, motor vehicle body
- car polish, car shampoo
- curvature, arch, curve, bow
- curb (USA), kerb (GB)
- cast bars, bar
- construction, style, design
- construct, build
- condition, requirement
- clip; pipe bracket; (Zündspule) clamp
- convey, transport, forward; (Arbeitsplatzverbesserung) promote
- carriage, transportation, (job) promotion
- certify, authenticate
- container, (fuel) tank
- calculate , measure
- condition; (Oberfläche) finish (paint surface)
- composition,placement, team members
- constituents (chemical); component (machine); matter (physical)
- combustible, inflammable, flammable
- combustibility, inflammability
- convertible-top lining, convertible-top cover
- choke, slow down
- compressed air,
- carry out; (Überprüfung) conduct (test), perform (test)
- core data, key data
- characteristic, property
- CAD, computer aided design
- CAM, computer aided manufacturing
- cockpit; instrument panel
- coil measurement, coil weight
- CD, coefficient drag
- ceiling, roof,
- classify, grade
- cam; eccentric
- clamp, fasten, fix
- conveyer technology, conveyer system
- continue, proceed
- conduct, transmit
- conduct, guide; (Management) lead, manage, run
- chassis; (Maschine) running gear
- coat, layer
- charge, batch, filling