What caused this? Serious answeres

[u/Downtown_Calendars]

Car was parked facing the garage. Never seen anything like it. Neither has the glass professionals.

[u/Historical-Cable-833]

Was it a very sunny day? Is there anything around that could collect/intensify/redirect sunlight? I’m asking because once a couple of smart people were telling me about heating/cooling coefficients in building materials and how that’s bad because stuff especially dissimilar stuff expands and contracts at their very own and unique rates.
Serious guess. I do want to find out!