There appears to be a fairly huge announcement from Elon Musk later tonight..........."get ready to flush out your head" was the tweet.

The various guesses are that it is a fully-automated electric semi-truck capable of driving fully-loaded from LA to NY, possibly without stopping and without a driver!!.....driver-less is almost certain, but the only way it can travel non-stop is for the cargo to be moved onto a separate battery module en-route and the "old" battery drives it's way back to it's charging station.

On a similar note, an "electric highway" is being built from Italy to Scandinavia in readiness for the whole of Europe to shift to EVs.

https://electrek.co/2017/11/13/elect...rway-to-italy/