We also have to take the net effect of any technology. I believe it's been proven that a hybrid car costs more in emissions over it's life than a petrol car.
How much emissions does it take to produce these cars? To dispose of these cars? You have to look at false economy and not just knee jerk like 99% of people tend to do.
I'd be quite happy for the government to mandate car specifications. Let's say we all have to drive those little Smart cars. Top speed mandated at 100 kph. Many benefits could be had.
