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Audi celebrates 25 years of TDI

Nope, the diesel engine never really did go out of style for Audi. Now, the German automaker has released a video reminding the world of its persistence with the oil-burners and is commemorating the Silver Anniversary of Audi's first commitment to turbodiesels in 1989. And, yes, there are some road racers shown in the clip, so some of those bad boys actually move pretty well. Audi engineers on camera admitted to some of the early TDI engines being "slow" but still valuable for their torque and, obviously, their fuel economy relative to gas-powered engines. A bunch of tinkering later, though, and Audi says its diesels can be a legitimate "part of a performance car" and has even overcome the issue of noisiness that's often associated with diesels. The automaker made some news in these parts a few years back when its Audi A3 TDI won the 2010 Green Car of the Year at the annual LA Auto Show in late 2009, and the model even succeeded a fellow diesel (the Volkswagen Jetta TDI) to boot. Granted, diesel sales aren't nearly as popular in the US as they are in Europe. Still, Audi last year boosted its diesel sales in the US by 40 percent to 10,076, which was about a tenth of what sister company Volkswagen sold in diesels last year in the States. And things have looked even rosier this year for Audi's TDI sales. Through June, Audi diesel sales have almost quadrupled from a year earlier to more than 8,100 units. Check out the 150-second video on Audi's 25-years of TDI production below.

Audi reveals revised RS5 DTM for 2014

There existed an era in German touring car racing between when the DTM series was revived in 2000 and when BMW rejoined in 2012. During that twelve-season span, the wins were pretty evenly divided between Audi and Mercedes-Benz, the only two manufacturers who took part. Audi won six drivers' titles in that time and Mercedes won six (although Benz won considerably more constructors' titles).
Now that BMW is back in the race, though, it's an entirely different game. BMW has won the lion's share of the races in the past two seasons, taking both titles in 2012 and the constructors' title last season. The winning driver last season, though, was driving the RS5, making Audi the only one that really stands a chance of putting up a fight against BMW. It undoubtedly hopes to extend that challenge in the coming season, and this is the car with which it aims to do so.
Taking on the Mercedes-AMG C-Class Coupe DTM and the new BMW M4 DTM will be the revised RS5 DTM you see here. Bearing a stronger resemblance to the road-going RS5 you can buy, Audi's new DTM challenger benefits from a revised aero package with more streamlined side mirrors, closed rear wheel arches and reprofiled side sills. The V8 engine carries over (much as it did from the previous A4 DTM and A5 DTM) with 456 horsepower driving the rear wheels through a six-speed sequential gearbox.

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.