The GT-R added to the C10 series Skyline on February 1969, was the first step in the glorious history of Skylines thereafter. Its 6 cylinder, twin-cam 4 valves per cylinder engine was the S20, taken directly from the famed R380 which left its mark in world speed records and the Japan GP. It was the engine of the Prince Motor Company that kept its shine, even after its merger with Nissan. However, though the price of the normal GT was 80,000 yen, the S-20 engine of the GT-R alone cost 700,000 yen.