GM is also focusing on fuels from renewable resources.
"Flex-fuel" vehicles can run on any combination of gasoline or E85 (85% ethanol and 15% gasoline). Not only is Bioethanol a fast growing alternative fuel, but as a renewable source, it has the potential to significantly reduce CO2 emissions on a source-to-wheel basis. Globally, GM has about 3.5 million flex-fuel vehicles on the road in America and Europe. GM is working with partners such as Coskata on sustainable fuel solutions for the market. These partners use proprietary microorganisms and transformative bioreactor designs to produce ethanol from a wide variety of biomass input materials.
Flex-fuel engines run on both gasoline and Bioethanol, reducing CO2 emissions on a source-to-wheel basis.
In Europe, the Cadillac BLS Flexpower comes with an E85 engine and Saab offers its 9-3 BioPower and 9-5 BioPower model lines with flex-fuel propulsion.
In 2010, Opel/Vauxhall and Chevrolet plan to launch flex-fuel models.