After doing some laps in track day my clio 172 engine is dead it has some knocking sound from the engine. Meet a fomula renault mechanic on track nothing wrong on the rocket arm they sad it may has one piston is broken. Need a good second hand engine. Anyone can help I live in Hong Kong need arrangement to ship. Need help. The other clio is break down after the other day on the track so two clio break down in two day what is wrong with the engine. I thought the renault sport is very reliable but very disappointed. Too Hot in HONG KONG ?? Talk to the other guy his clio 172 also break down 3 months ago on the track.