Charger is one such word. Champion is another one often associated with a horse.
client
chaser
chasm
Car is another word for truck that starts with a "c".
"Cabbage".
A synonym for liar that starts with "c" is "deceiver."
Colossal
Clint Eastwood is an actor whose name starts with the letter C .
Shies is the sudden movement by a startled horse. A startled horse may charge off at a fast run.
Catastrophic
civilianscommonerschaps
consomme