Renault engineeing has thorougly investigated these reports and has now issued the following statement :
Clio III Renaultsport 197 is equiped with a high performance engine, which has been engineered to acheive its optimum performance at high engine tempretures.
In order to warm-up the engine, Renault recommends that the drivers allow at least one minute on tick-over before driving. If the vehicle is driven during this warm-up there may be some hesitation, however theis has no impact on engine reliabilty