T i m wrote:
On Thu, 14 Jul 2005 12:52:26 GMT, "PC Paul" wrote:

Modern cars actually clean up the air they burn in terms of
pollutants. The only significant emission is CO2. And water, of
course.

Not quite yet - some new cars do manage this, in a dense city
environment their emissions *are* cleaner than the ambient air. But
only when brand new. And only in polluted air in the first place.

It's a good start though.

So, what we want in heavily polluted cities is more (new) cars! ;-)


New hybrids and electrics, yes... ;-)

And apart from the new fuel cell buses all the diesel ones need to
stay out of the city centre (doh .. PT ..)?


Very new diesels can do it too...

Is it Japan when any vehicle over 3 years old / 60k is 'scrapped'
(sold to us more like)?


Recent thread on uk.rec.driving. Basically it becomes totally uneconomical
to run a car over 3 years old in Japan due to exorbitant inspection and tax
costs. Hence the booming export market.