The 8 was powered by an all new 956 cc Cléon-Fonte engine developing . The R8's engine followed the pioneering example of the recently introduced Renault 4 by incorporating a sealed for life cooling system. A distinctive innovation on the French produced cars was the fitting of four-wheel disc brakes, a first for a saloon car of this size. However, when in 1965 Renault's Spanish affiliate introduced their own version of the Renault 8 for the (then tariff-shielded) Spanish market, it came with drum brakes.