In transitive terms the difference between card and cart
is that
card is to comb with a card; to cleanse or disentangle by carding while
cart is to carry or convey in a cart.
As nouns the difference between card and cart
is that
card is a playing card while
cart is a small, open, wheeled vehicle, drawn or pushed by a person or animal, more often used for transporting goods than passengers.
As verbs the difference between card and cart
is that
card is to check IDs, especially against a minimum age requirement while
cart is to carry goods.
As a proper noun CART is
acronym of lang=en|Championship Auto Racing Teams, a defunct sanctioning body for open-wheel racing in motorsports in the United States of America.