The assessment, presented as ministers met in Amsterdam to discuss greening transport, points out a series of flaws in the tests. First, various equipment that increases vehicle weight, thereby adding to emissions, is not included. Growing use of seat heaters, air conditioning and the like could be adding an extra 16 to 28 grams per kilometer (g/km) to new car CO2 emissions, the agency says. And though Euro emission standards for pollutant emissions from cars have brought particulate matter, sulfur and nitrates (PM, SOx and NOx) below the level of transport growth, "test cycles do not reflect how engines.