What is that ?!

Hey all,
I was always wondering what are those boxes' (on the roof ) job ... i got told that they were cameras ... Anyway, I just wanted a clear answer from someone who is really into rally and who knows what those stuff are ...
thanks folks !!

It's a roof intake for the driver cooling system, that scoop puls the air into the car and there are directional vents on the interior roof that allow the driver to regulate the air.

If you look on the more recent rally cars, there is a small silver box on the roof, that is the roof mounted camera.