The scary thing is that it would only take a stroke of the beuracractic ****...sorry, "pen", to bring in something as stupid as this...look at the facts...they can bring in new road rules and laws at a whim, they can bring in new design rules which they do not tell people much about which make a mod you had last week suddenly illegal, etc, etc...
Nothing to stop us waking up tomorrow and finding out that KRudd has suddenly got a hard on over the environment and new cars for all...and bringing in just this plan, over a carefully set up phase-in period of course...
I had the same idea GreenVK...if someone has been driving a crappy old sub-$3000 car for years, can you honestly see them suddenly using thier shiny new certificate and coughing up another $30,000+ for a brand new family car?