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EPA annual report on CO2, fuel economy and technology trends finds 2012 heading for all-time best; rapid adoption of new technologies

Green Car Congress

The fleet-wide average real world MY 2011 personal vehicle CO 2 emissions value is 398 g/mi and average fuel economy is 22.4 l/100 km) or more and 6 times more cars with ratings of 30 mpg (7.8 The number of cars with 40 mpg or higher (5.9 The average car weight increased 81 pounds (36.7 l/100km) or more.

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Study finds that replacement programs that reduce vehicle lifetime can result in increased lifecycle CO2 emissions

Green Car Congress

Effects of changes in the average lifespan of ordinary passenger cars newly registered between 1990-2000 on total induced CO 2 emissions in 2000. The increased lifetime of cars negatively affects the fuel efficiency average of the fleet, with negative environmental implications. Credit: ACS, Kagawa et al. Click to enlarge.

Emissions 218
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EPA trends report sees record levels of average new vehicle fuel economy and CO2 emissions for MY 2012; role of new gasoline vehicle technologies

Green Car Congress

From MY 1987 through MY 2004, on a fleet-wide basis, automotive technology innovation was generally utilized to support vehicle attributes other than CO 2 emissions and fuel economy, such as weight, performance, and utility. The number of car models where at least one variant has a combined city/ highway label fuel economy of 30 mpg (7.8