There are several pairs of doublets (related words) in English where one is from Norman and has a ‘c’, and the the other is from Old French and has a ‘ch’.
‘car’ vs ‘chariot’ is a example, and they have the bonus of also being related to “horse”.
Others include ‘castle’ vs ‘chateau’, ‘cattle’ vs ‘chattel’, ‘canal’ vs ‘channel’, ‘catch’ vs ‘chase’, and ‘pocket’ vs ‘pouch’. I may make images with those examples in the future too if I feel like it.
Weirdly “car” is related to “horse”, but unrelated to “cart”.