We must move forward in a clear and consistent direction and accept that the catalytic converter is the way forward.
Crucially the lean-burn engine is not in production and the three-way catalytic converter is.
The catalytic converter is present-day technology which has been used on millions of vehicles throughout the world and of which we have wide experience.
The catalytic converter may improve some environmental problems, but it worsens others.
We are the only country to wage a major campaign against the catalytic converter, claiming that the lean-burn engine would solve the problems.
One gets secondary pollutants after the catalytic converter has done its work.
Let us make regulations immediately for the inclusion of a catalytic converter in the exhaust systems of every new car turned out by the industry.
However, the estimated cost of an optional catalytic converter on a new car is approximately £350.
