The last news I heard was the Lightening was indeed keeping the supercharger, that it had a new patented "goody" that is pretty much ingenious. But maybe you have more recent news than I do
I'm doing this by memory, but here it goes, it would have a separate reservoir for coolant aside from the radiator and overfill container. this fluid would be cooled by the intercooler and while driving the operator would be notified by a light in the dash when the injection was ready.
I think it was from a push of a button, if not the mash of the throttle (button would make more sense to me) and it would inject this super cold coolant into the motor giving it an extra boost of power from the sudden temp drop.
I can hunt for the link to this article, this was a few months ago I read this. I nearly shiat myself when I read it too.