[ainarssems]

Originally Posted by B4-Andy

So it's one of these things I have thought about often in the past few months, suppose you live in the Canaries / North Africa. These cars are tested to survive the environment there, as well as waaaay up north, such as Glasgow or Reykjavík. There are regional specific parts to every car, but the basics of the car should survive between the extremes.

So in theory, I agree the extreme heat might be causing problems, but it doesn't sit right....

Only windscreen I ever had spontaneously crack was in a cabriolet while in a back road blast with a motorbike, went round one corner and hit an odd bump in the road, which caused the car to bounce strangely, like during a left turn the car essentially bounced 2ft to the right (at last that's how it felt). Didn't notice the fracture in the bottom corner of the windscreen until I got back out.

I am sure they are tested and only small amount fail due to extreme weather. Also if you have large variations regularly car might get 'used to it' and less likely to fail.