My point exactly made quite some posts back The only true zero emissions car in use is one which is repowered(charged) by renewables, EG solar panels on the roof (or others). In Australia's general climate that is quite possible and indeed some people do so Unfortunately not many.
What might be an acceptable alternative is the power companies use renewables and then the pollution in the city and at the generator will be mostly eliminated. That would require a policy that acknowledges we have a problem. That's our problem here ??