Do you really have to be such an extreme kill joy? I think anyone that watched the video would see the exact same thing we both saw, yes, it isn't perfect, yes if you aren't looked straight on you won't see it, but goddamnit if it isn't an awesome effect that is going to get people talking and will generate buzz for Mercedes and overall is an absolutely awesome way to advertise that your car looks "invisible" to the world it is driven in.
They use a deceptive camera angle to make it look like it works much better than it does in reality. As thoughtful people, what are we supposed to conclude about hydrogen fuel cells?
It's still a great ad, and I enjoyed it. Some of the secondary press coverage is terrible though (PC World: "Mercedes makes invisible car, tricky to find where you parked it"; says that if the invisibility isn't perfect, it's because the LED sheet is too low resolution.)