It says the average is 300g, and 256<300. So it was already better in 2009, and as you note it's gotten better. New hybrids do 180, not the normal petrol cars C

It says the average is 300g, and 256<300. So it was already better in 2009, and as you note it's gotten better. New hybrids do 180, not the normal petrol cars China would otherwise be using.