VideoCardz took a close look at the photos of NVIDIA's Drive PX2 and concludes that the board shown at CES 2016 used a GM204 "Maxwell" based chip. We can only guess whether this means Pascal is running late or not.
So what does it all mean? Absolutely nothing. NVIDIA was just not ready to show Pascal, but they failed to inform us that the Drive PX 2 prototype had Maxwell installed. AMD was at least ready to show Polaris GPUs at RTG Summit and later at CES, and this was confirmed by multiple sources, which unfortunately were not allowed to take any pictures.