Rear windows - up or down?

[Jimbot58]

I have been noticing that when viewing actual photos of cars on line, more often times than not, they seem to have the rear passenger windows rolled up. None of the model kits I have feature this option. Just front and rear glass and wing vents when appropriate, Then oddly enough, I look at the box art of my Olds 442 kit and behold! It shows a photo of an actual car with the rear windows rolled up! What are your thoughts? I wonder if adding these might give a little more realism to the kit? I'm not changing any thing on this WIP, but maybe on a future build?