The market for E85 flex-fuelled cars is booming. Saab, the largest seller of flex-fuel cars in Europe, recently delivered the 100,000th flex-fuel car in the Swedish market – a Saab 9-3 BioPower. In fact, Saab BioPower models have been the main contributor to Sweden’s leading position in the switch to renewable fuels within Europe.

After powering the micro-electronics revolution, silicon could carve out an important new role in speeding the debut of ultra-clean fuel cell vehicles powered by hydrogen, researchers in China suggest. Their calculations show for the first time that silicon nanotubes can store hydrogen more efficiently than their carbon nanotube counterparts.