The word "驾车" is formed by combining two independent characters, each with its own meaning. The first character, "驾" (jià), carries the core meaning of "to drive" or "to harness". The second character, "车" (chē), means "vehicle" or "cart". They are joined in a logical action-object sequence, where the first character acts upon the second, to directly convey the composite concept of "driving a vehicle".