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Audi creates new diesel fuel from carbon dioxide and water

What if you could power cars of the future with pollution created by the cars of the past? That's what German automaker Audi is hoping to achieve by creating a new synthetic fuel using renewable energy to turn water and carbon dioxide gas into a new kind of fuel they call "e-diesel." The new diesel is being produced at Audi's pilot plant Sunfire in Dresden, Germany. Only a few gallons were created, which the German Federal Minister of Education and Research Johanna Wanka put into her Audi A8 to prove the fuel's bonafides. The base fuel is known as "blue crude" and begins from a green source. Audi uses electricity from wind, water or solar power sources to separate hydrogen from oxygen in water. The hydrogen is then mixed with carbon dioxide which has been converted in carbon oxide. The blue crude is then further refined to create the e-diesel. The carbon dioxide is currently supplied by a biogas facilities, but some of that CO2 was captured from the air. "The engine runs quieter and fewer pollutants are being created," says Sunfire CTO Christian von Olshausen. The fuel can be combined with conventional diesel fuel, as biodiesel fuels already and would be competitively priced against regular diesel, according to Gizmag. Sunfire can produce about 42 gallons of e-diesel a day. That seems like barely a drop in the bucket in terms of Europe's energy use, but Audi is ready to commercialize the technology with plans to expand production with a bigger facility in the future.

CO2-neutral* Audi A3 G-Tron goes on sale in Germany

The Audi A3 Sportback G-Tron has been on our natural gas-powered radar since it was unveiled at last year's Geneva Motor Show. Just before the big show starts up again this year, Audi put the new G-Tron vehicle on sale in Germany today, starting at 25,900 euros ($35,400 US). Anyone who opts for the Audi e-gas fuel card will be able to cruise the Autobahn knowing that their emissions will be CO2-neutral. That's because Audi has built an e-gas plant in Werlte in Lower Saxony, Germany that creates a synthetic methane that is compatible with natural gas from a process that uses "green electricity" to "[bind] as much CO2 as is released when the Audi A3 g-tron is driven in gas mode." Your own A3 G-Tron doesn't burn the carbon-neutral fuel directly, but the automaker will track how much is spent using the fuel card and make sure "that exactly this amount of Audi e-gas is fed into the German natural gas network." Audi charges 14.95 euros a month to use the card. Burning that e-gas in the A3's 1.4-liter TFSI engine can put out 110 horsepower (you can also burn regular natural gas or gasoline) and offers fuel economy of between 3.2 and 3.3 kilograms of gas per 100 kilometers on natural gas Audi A3 g-tron: Advance sales get the green light Ingolstadt, 2014-02-13 Audi A3 Sportback g-tron available to order from February 13 CO2-neutral mobility with the Audi e-gas fuel card Prof. Dr. Ulrich Hackenberg: "Audi e-gas is an important pillar of our sustainability strategy" The Audi A3 g-tron is all set to hit the roads. Advance sales at dealerships in Germany will kick off on February 13. The basic price will be 25,900 euros. Using the Audi e-gas fuel card, customers can opt for Audi e-gas to power their A3 g-tron without impacting the environment if they wish. The Audi A3 g-tron forms part of a new, integrated and sustainable mobility concept from the brand with the four rings. Its 1.4-liter TFSI engine developing 81 kW (110 hp) can be operated using either natural gas, e-gas generated by Audi or gasoline. In pure e-gas mode the g-tron is entirely CO2-neutral. Audi e-gas is a synthetic methane that is produced at the Audi e-gas facility located in Werlte in Lower Saxony, Germany – the world's first industrial power-to-gas plant. An A3 Sportback g-tron fueled by Audi e-gas is currently the most environmentally friendly form of long-distance mobility.

Refreshed A1 packs Audi's first three-cylinder gas engine [w/video]

Back in 2010, Audi debuted the diminutive A1, and it's sold over half a million of them since. Now, more than four years later, the German automaker has given its smallest and most accessible model a facelift and some updated equipment.
The latest version of the A1 benefits from a range of updates, including a sharpened take on the company's familiar styling with a reshaped single-frame grille, new bumpers front and rear as well as new wheel and color choices. But the biggest news is the introduction of Audi's first three-cylinder gasoline engine.
The turbocharged, direct-injected 1.0-liter three-pot churns out just 94 horsepower, but that's still six more than the previous base 1.2-liter four offered, all the while returning better fuel economy and emissions figures. Of course, that turbo three is not the only engine on offer, joining the 1.4-liter turbo four in 123- and 148-hp states of tune and the 113-hp 1.6-liter TDI. And of course there's still the 228-hp S1 performance model. Depending on specification, the engines are mated to a five- or six-speed manual, but can all be optioned with a seven-speed dual-clutch transmission as well.