Despite the tasty hyperboles, everything about cooling is practically a copy of the PS4 cooling from 2013. It doesn't add cost.The more I read in DF about Scorpio, the more expensive I think it is going to be. From today's DF article:
http://www.eurogamer.net/articles/digitalfoundry-2017-project-scorpio-hardware-deep-dive
The cars comparisons have no basis in reality either. An intercooler, or a supercharger, have little in common with this.