 For the successor of the R9 and R11, the R19, Renault would develop a more modern engine.Renault modernized its old Cléon-Fonte motor with a new hemispheric cylinder head and an overhead camshaft, driven by a toothed timing belt, which appeared as the Energy in 1988.This new engine would go on to be used in the Clio 1, Mégane 1 and even Express.