Bentley is developing bioethanol-powered versions of its large-engined models.
Electric vehicle-maker Think! has appealed to the Norwegian government for help.
Renault-Nissan has signed a deal with EOS to develop a recharging infrastructure in Switzerland.
Engineers have developed a road which can generate electricity as vehicles pass over it.
Details of Volvo's upcoming environmentally friendly new cars - DRIVe C30, S40 and V50, and more.
Dale Vince is planning an electric sports car that he will only run on wind-generated electricity.