Emissions, interesting reading.
 

‘Borrowed’ from a member on UKLegacy, makes for interesting reading not that emissions are really high on any of our lists of priorities!

http://www.bbc.co.uk/news/resources/...ur_car_exhaust

Saw that when it first came out. Have to admit to feeling a little smug when it mentioned that my wife's C250 was still within the limits in real world usage, unlike a lot of others!