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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.

An amazing Group B rally car collection heads to auction

Kicking off in 1982, the Group B era spawned some of the most fearsome rally cars of all time. The technologically advanced pioneers of all-wheel drive and turbocharging defined a time when automakers had carte blanche to build machines with unrestricted power, without the burden of homologating a large number of road cars to qualify. The results were sometimes deadly, leading the FIA to ban the class after 1986. Now, a collection of seven Group B monsters is headed across the block in Paris as part of the Artcurial auction, held in partnership with France's famed Retromobile show. The show has been delayed to June, however. There's a 1985 Peugeot 205 Turbo 16, one of 20 Evo II models that helped the company achieve two championships in Group B's short run. This particular example was driven by world champion Timo Salonen at the 1986 Swedish Rally, where it finished seventh due to an oil filter seal failure. Bruno Saby subsequently drove it at the 1986 Tour de Corse and Peugeot entered it at the 1986 Acropolis Rally as well. It's still registered to Peugeot Talbot Sport and represents a French technological achievement, according to Artcurial, comparable to the Concorde or TGV train. Representing Italy are a pair of Lancias in the iconic Martini livery. The Lancia 037 helped Bel Paese clinch its only Group B victory in 1983, after a hard-fought rivalry with Audi. It's one of the few Group B cars that weren't AWD, achieving its success the old-fashioned way, through lightness and superb handling. A second Lancia, a 1986 Delta S4, was the culmination of the Italian firm's later Group B efforts and one of Saby's favorites. While Group B was no more in 1987, the S4 was the predecessor to the Delta Integrale that would dominate WRC from 1987 through 1992. While the collection also includes greats like a Ford RS200, Renault 5 Maxi Turbo, and MG Metro 6R4, the centerpiece is the Audi Quattro Sport S1. The ultimate Group B machine, it introduced all-wheel-drive and turbocharging to the sport. It also employed the wildest use of wings and air dams to generate downforce. Tunable up to 590 horsepower, it could rocket to 60 mph in about three seconds. The car offered for sale came straight from Ingolstadt, a 1988 model built for the Race of Champions of ex-Group B cars. The collection was amassed in the late 80s and early 90s, not long after Group B's dissolution.

2016 Audi RS 7 Performance Quick Spin

Audi's roster of Sevens – the A7, S7, and RS 7 – gets a new and overachieving member with the new RS 7 Performance. The big story is that it ups the RS 7's 560 horsepower to 605. And while the advertised torque rating of 517 pound-feet doesn't change, Audi says the car will actually produce 553 lb-ft during moments of overboost. Hunkered-down with 21-inch wheels filling the wheel wells, the RS 7 Performance has a top speed of 190 miles per hour, and runs to 60 mph in 3.6 seconds – our informal stopwatch tests suggest that may even be conservative. We drove the RS 7 Performance in Florida, which included an eventful lap around Daytona International Speedway's road course, just prior to the Rolex 24 Hours at Daytona. More about that in a moment. Driving Notes The RS 7 Performance is pretty rough-riding at its softest, a problem only on bad pavement and roads with dips. It isn't punishing, but it never lets you forget this is a performance luxury car, in that order. The eight-speed Tiptronic automatic transmission is a sweetheart, never confused and always standing by to maximize the 4.0-liter, twin-turbocharged V8's muscle. It would have been nice to be able to dial in a little extra exhaust sound – what you can hear makes you want more. The RS sport seats, with optional Valcona leather and Alcantara inlays and steering wheel cover, are excellent. There's a reason why Audi is a template for automotive interior designers. Rear seat room is a little tight but tolerable. As for that lap at Daytona: We were only given one, so we went for it, and hit 164 mph on the back stretch before having to wade deep into the ABS for the bus stop turn. The engine was still pulling hard – we have little doubt the advertised 190 mph top speed is accurate. While the big ceramic brakes did their job, we weren't given a cool-down lap, and the combination of 4,500 pounds and 164 mph seemed to have set the front brakes on fire. No, really. It took a spritz of water to drown them out. We were told that it isn't unusual for ceramic brakes, the first time they hit 800 degrees, to burn out some impurities. Afterwards, the brakes worked fine, but we sure got a lot of attention from the IMSA Rolex crew on pit road. The RS 7 Performance is a viceless car, one we'd cheerfully drive for a very long time.