(Source: Marlerhaley via  Killer Infographics & Autoblog Green)

Image Courtesy: Marler Haley, UK

On a related note, it might be worth noting that there is a already a lot of controversy surrounding the official numbers posted by the automakers versus the results from real life driving conditions in Europe.  Here is a peek at the ongoing debate:

Jos Dings, director of Brussels-based Transport & Environment, told Automotive News (sub. req.) that official CO2 emissions results posted by automakers are “less and less a reflection of what we are seeing on the road.” Dings says that the amount of CO2 emitted under controlled test conditions can be up to 50 percent lower than in real-world driving, telling AN that, “We don’t want cuts on paper. We want them in reality.”

Image Courtesy: via Autoblog — CO2 emissions chart

Click here to read more about this ongoing issue.