In 1964, less than two years after their introduction, it was decided to give a face-lift to the RMC’s. The main changes were at the front where the wings were revised to give a smoother, deeper line, the brake vents were omitted and the registration plate was attached beneath the lower edge of the body. The “via” box was widened to match the main destination blind box and the lower half of the front ventilation grille was covered to form a continuous band between the two decks. The main livery changes included the disappearance of the main Green Line wording on the side of the lower decks and the use of decals for a revised roundel which was moved forward on the sides to below the first window of the upper deck.