anyone can do a general search on google for 'zero emmissions' and get the general idea on the way exhalt is going with their zero emmission standards. This concept is not new, His mentioned methods may be something different but is it really? And as far as a true 'zero emmissions' the articles i read on this do show promise but we have a long way to go before anyone can really call anything truely zero emmissions. Exhalt can say auto manufacturers are behind in this technology but the one thing he cannot argue is that they do have a product out on the markets that is demonstrating that they are heading in that direction. The vehiclos may be zero emmission 'per say' but the manufacturing processes are the downside to this by not being zero emmission.
There are more sides to poluting than just CO2, several other elements that he seems to be ignoring which are explained in those pages in the documents i read about.
His 'special fuel' or whatever it is that makes his concept unique i think is irrelevant imo.

It may be a play on words and disecting the processes to suit an adjenda for a common goal but i do believe it is headed in the right direction, just dont think we're quite there yet imo.