It depends on a lot of things, like whether your car is in the sun, whether you have tinted windows,
if it is in a bow case, etc.

I'm sure most people have had things melt in their car. A good while back, my wife had a videotape of
her skydiving with a prior boyfried get completely melted on the back dash, and I can't say I was sorry. [8D]

Segue aside, at least put it in the trunk or where there is no direct sunlight on it, that's what will cook it.