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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.

Audi planning RS Q7 performance crossover

Audi resisted getting into the crossover market altogether until it launched the original Q7 in 2005, and held back from producing a performance crossover until it caved first with the SQ5 and then with the RS Q3, both in 2013. And now that the tide has washed over it, Ingolstadt's next plan, according to Top Gear, is to launch a performance version of the new Q7. Though it remains unclear whether it would carry the S or RS badge, the performance-oriented version of the new Q7 will surely benefit from the hundreds of pounds in excess weight Audi managed to trim off the latest model over the one it replaces. Also unclear is whether said hi-po Q7 would go with a diesel or a gasoline engine. The diesel option would more likely go the S route than the full RS, but wouldn't be likely to make it to the States if it were only offered as a diesel. With the SQ5, it's worth noting, Audi offers a TDI diesel version in Europe and a gasoline TSI in North America, so we wouldn't be surprised to see it take a similar approach with the larger model as well. Whatever it does pack under the hood, though, the SQ7 or RS Q7 would be facing some stiff competition from the likes of the Mercedes GL63 AMG, BMW X5 M and Range Rover Sport SVR – not to mention corporate cousins like the Porsche Cayenne Turbo and upcoming Bentley Bentayga – while giving the Volkswagen group a bigger slice of that exclusive but expanding pie.

Audi readying diesel PHEV models for US and Europe

With the racing pedigree provided by the Audi R18 E-Tron Quattro, you'd be forgiven for thinking that the German king of Le Mans is capitalizing on the connection between its road cars and race cars at every opportunity. Maybe there's an entire range of Le Mans Editions for the automakers diesel-hybrid offerings, with perhaps Tom Kristensen acting as the brand's spokesperson for the technology in Europe. You'd be wrong, though, because despite the R18's overwhelming successes in endurance racing, Audi the road-car manufacturer doesn't offer a single diesel-hybrid production car.
This factoid will hopefully be as short lived as it is disappointing, though, as a diesel-electric is around the corner, according to the brand's tech boss, Ulrich Hackenberg. In fact, it gets better than a mere diesel-hybrid; it will be a plug-in diesel-hybrid, only the second to hit the market, alongside the European-market Volvo V60.
According to Hackenberg, the new tech will be the result of a marriage between the brand's well-received 3.0-liter, TDI V6 with an electric motor. The next-generation Audi Q7 (shown above) will be the initial recipient, confirming previous reports that claimed a PHEV TDI could come to the next-gen CUV. Its MLB architecture, meanwhile, would allow the plug-in-hybrid-diesel powertrain to be fitted easily enough to the A8 luxury sedan. While the new Q7 should hit the market at some point in 2015, it's unclear when the PHEV TDI model could see the light of day.