The plan to require European automakers to meet new carbon dioxide emissions limits looks set to be pushed back a couple of years from 2012 to 2014. The next round of Euro6 emissions standards was already due to take effect in 2014 so it would make sense implement the CO2 changes at the same time. Carmakers are already working on next-generation engines to meet those standards and pulling those ahead to 2012 would be extremely difficult. At that time each carmaker will be required have a fleet average CO2 output of no more than 120 g/km compared to the fleet average for all cars sold in the EU in 2005 of 160 g/km.
[Source: Automotive News - Sub. Req'd]