Did you just Ping me?
Nope, not me.
Happy New Year! :-)
This engine don't Ping.. It doesn't use a fossil fuel. :-}
The problem with All these Environmentally Friendly (EF) transportation Advances is, they are Less EF in the Manufacture and Post Use stages than the current Vehicles.
The enviro-wackies Ignore the Increase in Junk put out by a factory making an EF vehicle, and the longer-to-bio-degrade nature of the vehicle when its use-life has come to an end.
Sure, a Car might put out less pollution when used - BUT - more pollution is created in its manufacture, fuel supply manufacture and disposal.
Of course, they can always ignore that and then Blame the next Conservative leader when the time comes.