Any of you aware of problems with the P300e heat shield at the level of the exhaust ? I was doing a long trip for holidays and it sounded like bugs were hitting the cars door all the time. Took this morning a look and it appears the heat shield is partially cracked. No deformation, dents or other indications that something was hit. Looks like fatigue or improper mounting/design from the factory. Not so good for a car with barely 7000km's on it.