CO2 targets - is the car industry crying wolf? by Jay Nagley

The point is that if a whole range can achieve a good figure, there is no reason why every equivalent range cannot achieve a similar figure. For example, the average for the BMW 5 Series took into account every version of the range, from the 523i through to the 500 bhp M5. Thus the figure was not skewed by one particular version that happened to have a good CO2 figure.

Oh, and in case you were wondering who the baddies are, here is the list of the worst model ranges in each segment. It is notable that two manufacturers have four models between them in this table. Subaru and Cadillac - where are those clean Euro-friendly diesel engines you have promised us?