As a further thought to add to the above there should be immediate disincentives for the purchase of unnecessarily powerful and heavy vehicles. The suburban mum does not need a 2.5 ton SUV, whatever to motive energy source, to drive the little darlings to school or do the shopping.
I can't see the logic in saving the planet by buying 3 tons of vehicle with all the manufacturing and eventual demolition resource, carbon and waste costs.
Well stated Peter...
