Like Thrust said, this is because of Kinect.
Also, this gen Sony doesn't have a credible answer to Kinect. They would have boxed their camera with the PS4 otherwise.
They are saying they din't box it due to price. I think its more due to the fact that it can't compete well with Kinect 2.0
If looking at hardware we only look at processing, Sony has an advantage. If looking at hardware involves all of the hardware, then this ...
cool analogy.
Also the Xbox car has more high tech features (kinect). It can respond to the driver in more ways than the muscle car.
FWIW - I am muscle car fan, though. That's a different forum :-)