 Many journalists panned the Twingo for using this engine.The Energy and Clio R19 engine, due to its overhead cam, hemispherical cylinder head design with exhaust ports at the front of the head, could not go under the hood of the little Twingo.However, in late 1996, the new D7F engine, which was more modern, replaced the long serving Cléon engine in the base model Clio and the Twingo.