Here is a few things that I have noticed in the heat:
1. My A/C doesn't cool very well on days +100
2. When I start my car to leave work it runs fine, then my first take off the engine is extremely loud as if the air box was off or I was running with no muffler
3. Even with A/C completely off i can at times feel power loss under heavy throttle
4. My drivers side door will rattle.
Now the reason I bring up the door rattle is because I heard that here this past week they had an issue at the ports in CA. In the heat the door latch would not latch all the way and the door would open back up so they held all cars from leaving the port to go to dealerships. In the morning time the would check the door again and the latch worked properly. They tried it again in the heat and the latch failed again. From what I was told is that they replaced something physically in the latch then released the cars.... I don't know if this information is true or is false but once again I am having an issue with my door making noise when it is hot out and at the same time I heard this story.