So far on all the post delivery photos and videos, there is no cargo cover on the Y. No places to mount one either, based on what I've seen. If Tesla isn't going to have one as an accessory, this is a great opportunity for a third party accessory company to make a lot of money. One video I saw said the back glass is so dark you cannot see what is in there but that probably only applies to the daytime. I imagine someone with strong flashlight at night would see right in. I agree that at minimum this should be an OEM option, but Tesla being Tesla, they leave things off for some reason or another.