Yes Rebbonk money is at the root to every thing now most people I know now soon as they hear money mentioned it looses peoples interest even the charities adverts which cost a fortune to advertise.
As of the catalytic coverters and the unleaded I know all about poisons from these
http://www.whale.to/b/simons.html where a few doctors warned parliment about the cancers it will cause to the public on this thread .
My daughters boy friend is a machanic for a well known firm also my son use to work for BP also worked at a secret place where Conico was with Rover etc.
As for leaded petrol I read a while back there was no proof it caused a danger as the experts claimed the combustion was so hot it quickly burned away any dangers of fumes away before getting into the atmosphere but this is only what I read off the net .