If you've got a favorite
, you can now find out how dirty their cars are. R.L. Polk conducted a study on automakers average CO2 emissions for 2005 vehicles relative to other brands and to their own 1997 cars. The study found that
was emitting the least (139 grams of CO2 per kilometer, on average) and
was the worst (195 grams). The
has ranked the manufacturers by percent of a voluntary 2008 target achieved rather than by the more useful average CO2 emitted per kilometer, but these two rankings are fairly close to the same, so it's easy enough to reconfigure the list in your head.
The study is important, because in the European Automobile Manufacturers Association pledged to the European Union in 1998 that its members would drop average CO2 emissions for
to 140 grams per kilometer by 2008 (a reduction of 25 percent over 1995 levels). As of right now,
are less than halfway there, while Fiat,
should be able to meet or exceed the target.
[Source: BBC/Paul Rincon]