Renault is planning use electrically powered Meganes for a zero-emissions transport scheme.
Citroen is thinking about building an ultra-environmentally friendly car based on the C-Cactus.
Volvo is to offer a 'micro-hybrid' stop-start system that promises fuel savings of up to 5 per cent.
Nissan will denote the most efficient models in its ranges with a Pure Drive badge.
Here's how you have your cake and eat it: German Porsche tuner RUF is developing an all-electric version of the Cayman coupe.
The European Parliament has voted to stick with its target for carbon dioxide emissions reductions from Europe's car-makers.