The second generation Prince Skyline was introduced in 1963, the S50 with 1484cc 4 cyl. The S50 was the first Skyline to feature the 4 round tail lights, still a feature on the Skyline today. In 1964, the S54 2000GT was introduced with racing in mind, the front of the car was lengthened, giving the car a longer wheelbase, so the Prince Gloria 1988cc 6 cyl engine would fit. The S54 was available with either 105 hp single carby GT-A (Blue fender badges) or 125 hp triple weber GT-B (Red fender badges). Both cars got disc brakes on the front and finned drums on the rear, the GT-B also got an LSD and close ratio 5 speed manual transmission. Early 1966 saw the addition of extractor vents in the C pillar and later in 1966, a facelift to the grille and tail lights. The last of them in 1967 saw the tail lights and front side indicators changed to a rectangular shape.