2012 Audi A7 3.0t Quattro Premium Plus on 2040-cars

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Recharge Wrap-up: Ferrock a carbon-negative cement substitute, Audi makes e-diesel

A cement alternative uses recycled materials and traps CO2 rather than producing it. Invented by David Stone at the University of Arizona, Ferrock uses recycled steel dust and glass to produce a substance stronger than conventional concrete. Cement has a high carbon footprint from the high heat needed to process the limestone. Ferrock needs no such heat, and it actually uses CO2 to harden, making it, as Stone calls it, a carbon-negative material. Learn more in the video above, see the transcript at PBS NewsHour and read more at Green Car Reports. Teslarati offers a detailed rundown of Tesla's new Valet Mode feature for the Model S. Part of the Firmware 6.2 update, Valet Mode allows the owner to disable certain performance features and block personal information when letting someone else drive the car. It limits the car's to speed to 70 miles per hour, and caps output at 80 kW. It can also disable mobile app access, Homelink, Bluetooth and wifi and the "Places" function, which stores addresses for you. The folks at Teslarati did find some shortcomings in the new feature, though. Read more at Teslarati. Audi has produced its first batch of e-diesel made from water and CO2. The fuel is made by reacting hydrogen from the water with CO2 to make long-chain hydrocarbon compounds called "blue crude." That can then be refined similarly to crude oil to make e-diesel, which is a fuel free from sulfur and aromatic hydrocarbons. That e-diesel can be used on its own, or mixed with fossil fuel diesel to power a vehicle. "In developing Audi e-diesel we are promoting another fuel based on CO2 that will allow long-distance mobility with virtually no impact on the climate," says Audi Head of Sustainable Product Development Reiner Mangold. Read more in the press release below. Fuel of the future: Research facility in Dresden produces first batch of Audi e-diesel - The verdict: Pilot plant produces high-quality diesel fuel - No need for mineral oil: e-diesel made from water, CO2 and green power - Minister Wanka: "Synthetic diesel using CO2 is a huge success" Audi has taken another big step in the development of new, CO2 neutral fuels: A pilot plant in Dresden has started production of the synthetic fuel Audi e diesel. After a commissioning phase of just four months, the research facility in Dresden started producing its first batches of high-quality diesel fuel a few days ago. To demonstrate its suitability for everyday use, Federal Minister of Education and Research Prof.

5 stars in Euro NCAP crash tests for 5 new cars available in U.S.

Seven new cars have received a full five-star rating in the latest Euro NCAP crash tests. Of these, five are available in the United States: the Audi E-Tron, Lexus UX, Toyota Corolla, RAV4 and Mazda3. The Renault Clio and the Volkswagen T-Cross also took part, also receiving five stars. The Mazda3 hatchback was the fourth car in Euro NCAP history to reach an adult occupant protection score of 98%, after the Volvo V40 and XC60 and the Alfa Romeo Giulia. No NHTSA ratings for the Mazda3 or the Audi are yet available, but the Lexus and the Toyotas have all received five-star NHTSA safety ratings as well. Those three were tested as hybrid variants by Euro NCAP. Audi's first fully electric vehicle, the E-Tron, scored 91% in Euro NCAP's adult occupant rating, with unavailable knee airbags bringing down the score. The Mazda and the Toyotas offer them for the driver only, and the Lexus has the passenger's knees covered as well. The Lexus UX managed a 96% adult occupant score, close to the Mazda, and it provided better pedestrian safety (82%) than the Audi (71%), despite neither, or none, of the test vehicles having an active hood to catch pedestrians. As for the Toyotas, the Corolla, tested in both sedan and hatchback guises, scored 95% for adult occupant safety, with the RAV4 a couple notches down at 93%. Still, the five-star rating means all these vehicles are a very safe choice in their respective classes. Michiel van Ratingen, secretary general of Euro NCAP, states how important it is that even family hatchbacks perform well and have the latest safety tech available. "It is encouraging to see that all manufacturers did well, regardless of type of powertrain or class of vehicle tested," said van Ratingen. "New cars on the market continue to offer more advanced technology as standard, systems that were not even considered an option a few years ago." More crash test videos are available on Euro NCAP's YouTube channel. Audi Lexus Mazda Toyota Car Buying Safety audi etron lexus ux

Weekly Recap: The divergent paths of Tesla and Fisker

There's no doubt that Tesla is downshifting while Fisker has been grinding its gears. But it wasn't always that way.
In the wake of Tesla's recent success, it's easy to forget that there were once two California electric carmakers with bright futures.