Originally Posted by dasbuch

Mark is your car regularly parked within reflective distance of any windows (of a building or home)?

There is an increasing trend we are seeing in the US with newer windows they are putting in homes melting paint and plastic / vinyl parts on cars and homes. It can completely melt vinyl siding, because the Low-E reflective coating on some windows can combine with the convex window shape to create a magnifying-glass effect with sunlight. Example here: Melted Siding From LowE Windows - YouTube I've seen cars similarly damaged from this.

So you may want to look around where you park the car, is there a car with cheap metallic tint that parks next to you frequently, etc? Park in your usual spot and look for focus reflections on your car on a hot day, and check it with a laser thermometer. The temperatures from reflective surfaces can get really hot.

If not windows look for anything that might be reflecting on it. I can only imagine what the sunlight in Manila is like.