Jamieson, Fausset and Brown on Genesis 46:29-30

29-30. Joseph made ready his chariot--The difference between chariot and wagon was not only in the lighter and more elegant construction of the former, but in the one being drawn by horses and the other by oxen. Being a public man in Egypt, Joseph was required to appear everywhere in an equipage suitable to his dignity; and, therefore, it was not owing either to pride or ostentatious parade that he drove his carriage, while his father's family were accommodated only in rude and humble wagons.

presented himself unto him--in an attitude of filial reverence (compare Ex 22:17). The interview was a most affecting one--the happiness of the delighted father was now at its height; and life having no higher charms, he could, in the very spirit of the aged Simeon, have departed in peace [Lu 2:25, 29].