The British motor industry has been described as having "an enviable record on carbon reduction performance".
Paul Everitt, chief executive of the Society of Motor Manufacturers and Traders (SMMT), suggested that "significant reductions" have been made of recent years.
He also indicated that those involved in the sector are committed to improving in this regard in years to come, although he warned that automotive firms must maintain their competitiveness.
"Tough trading conditions and fierce competition from manufacturing sites outside of the EU, means any additional costs imposed through a further carbon reduction scheme could impact heavily on industry," Mr Everitt commented.
The SMMT suggests that such progress should be recognised at the next stage of the EU Emissions Trading Scheme. Additionally, it states that the latest European commission directive on emissions should clarify a number of points for those in the motor industry.
Earlier this week, Mr Everitt said that biofuels offer "an important opportunity" for reducing road transport CO2 emissions.