While electric hybrids are one way of going forward, Audi is also experimenting with e-ethanol and e-diesel at its research facility in New Mexico. This image taken by a high-speed camera shows fuel shooting into a pressure chamber at up to 15 bar and 662 degrees Fahrenheit.
Audi's scientists are using microorganisms in water (brackish, salt or wastewater), sunlight and carbon dioxide to create high-purity fuels. The idea is simple. Pure fuels generate fewer emissions when burned thanks to their chemical properties. They do not contain any olefines or aromatic hydrocarbons, assuring a more effective mixture preparation process, cleaner combustion and lower emissions.