The 6-cylinder units shared the same 120mm cylinder stroke length, but the bore (cylinder diameter) on the larger engine was increased by 5mm to 80mm. Although a new more modern Vivastella was introduced for 1934, the earlier model continued to be listed, at an attractively lower price, in the catalogue.
It incorporated most of the new mechanical elements of the new car, but used the older much more vertical looking bodywork. Derivative models, the Renault Vivasport and the sporting Renault Viva Grand Sport were also introduced.