hello guys did some of you already experienced this problem : on the track, when temp are high, from the 4th or 5th laps and ambient temp around 25-30 degrees. we hear several times a "clack" sound , nothing affect the performance of the car, it feels like a transmission issue, i don't know 2 times to the dealer without result, the more the car is hot, the more you hear this noise it is not reassuring, it may be a big gearbox breakdown later ... (if on the track...):(