President Nicolas Sarkozy would dearly like to end France’s rotating presidency of the European Union on a high note by brokering this week a deal on a grand European response to global warming and energy efficiency. The ultimate plan is to cut carbon dioxide emissions by 20 per cent with member states at the same time drawing their future energy needs from clean renewable sources by the same percentage amount. Under the circumstances, it is no surprise that the automobile industry has found itself at the heart of the climate change debate.

Indeed, Mr Sarkozy’s own government commissioned months ago one of France’s leading energy experts – Jean Syrota, the former French energy industry regulator – to draw up a report to analyse all the options for building cleaner and more efficient mass-market cars by 2030. The 129-page report was completed in September to coincide with the Paris motor show. But the government has continued to sit on it and seems reluctant to ever publish it.