The differences are truly night & day!

nt

the moonroof slides into a molded compartment in the roof. A sunroof slides along the top the car. It may be the other way around though...

The difference is that the Sunroof is the one that slides back. The moonroof on the other hand pops up. The A4 does both. So it has both a moonroof and sunroof.

blurred over time so that people interchange the two words to mean the same thing. Since all are glass nowadays, it doesn't really matter.

Sunroof - Piece of glass/plastic which tilts upward. hence used during the day when you don't want the sun beating down on your head.

Moonroof - Piece of glass/plastic which slides back, exposing the open top.

The interior cover is just an interior cover, it doesn't have anything to do with it being called a sunroof or moonroof.

My friend said that a sunroof is one that slides outside the car (you see this on cheaper cars) while a moonroof is one that slides into the roof. I don't know if there's any truth to that.

Then mfrs started offering sunroofs with option of plastic (ie BMW)

I'm not sure it mean anything anymore. It use to be that a sunroof was solid, byt did open fully. a moonroof was clear, so at night you can have it closed and still see the moon.

Frank b.