In Spanish, "caro" means "expensive" or "dear" when referring to a person, while "carro" means "car" or "cart." The difference lies in the meanings and usage of the words.
noun. car [noun] a (usually privately-owned) motor vehicle on wheels for carrying people; automobile(American) float [noun] a vehicle for transporting certain things. motor car [noun] a vehicle on four wheels, moved by a motor, but not a lorry or van; an automobile, car.