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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.

Audi RS Q3 gets snarlier, hits 62 mph in 4.8 seconds [w/video]

Well, that was quick. A mere 20 months after its debut at the 2013 Geneva Motor Show, Audi has issued a fairly significant update to its RS Q3 crossover. A light exterior refresh - the most noticeable change is that the grille surround and headlights are now joined - belies more significant changes under the compact crossover's hood.
Power from the 2.5-liter, turbocharged five-cylinder has been boosted nicely from 310 horsepower to 340, while torque has jumped from 309 pound-feet to 332 lb-ft. The result of this extra thrust is that the tiny CUV can now scamper to 62 miles per hour in a seriously quick 4.8 seconds, rather than the original RS Q3's 5.5-second sprint. A new fifth-generation multi-plate clutch is fitted to the seven-speed S-tronic dual-clutch transmission, which Audi claims will now deliver even quicker shifts.
Lighter brake rotors with ridiculous eight-piston calipers in the front provide what we imagine is a lot of stopping power, while Audi continues to offer an optional adaptive damper system. 19-inch wheels are standard while 20s are optional.

Audi gets Q2 and Q4 badges in trademark swap with FCA

Audi has swapped trademarks with Fiat Chrysler Automobiles to snare the rights to the Q2 and Q4 badges for upcoming crossover SUVs. Audi CEO Rupert Stadler confirmed at the Detroit Motor Show that the automaker had finally persuaded FCA to release the two names that would let Audi lock up the Q1 to Q9 badges for its growing SUV family. Audi already plans to drop the Q2 name onto its MQB-based city crossover five-door this year, while the Q4 badge will slot onto the rump of a coupe-like version of the next Q3. It will also reserve the Q1 badge for a 2018 baby crossover, based around the architecture of the next A1 hatch. The A1 will share a lot of its engineering with Volkswagen's Polo-based soft-roader, dubbed T-Cross in concept form. The German company has also pounced on the naming rights for SQ versions of all of its Q-cars, along with F-Tron to cover the day when it pushes hydrogen fuel cell cars into production. Stadler insisted that no money had changed hands in order to pry the two badges off FCA, admitting that they had "each found something we needed." "We promised each other we wouldn't disclose what it cost, but it was not something they were willing to sell," Stadler said. "We tried to get it years ago and they said 'No, never,' but there is never 'never' in business. ... This year I went back to them with a proposal and we talked and there were some negotiations and then we agreed to it." Those negotiations are believed to have centered on a trademark swap with a Volkswagen Group name that FCA desperately (evidently) wants to use on a Fiat, Alfa Romeo, Chrysler, Dodge or Maserati. Asked if Audi had given FCA a trademark in return for Q2 and Q4, Stadler replied, "Something very much like that, yes." Audi has used Italian names on past concept cars that FCA could be interested in, such as the 2001 Avantissimo concept and the 2003 Nuvolari coupe. The latter was named after legendary pre-war racer Tazio, who won grands prix for both Alfa Romeo and Audi's forerunner, Auto Union. Both are unlikely trade chips, with laws in Europe preventing the trademarking of the names of actual people. There is always "quattro" (Italian for "four"), but after investing nearly four decades locking it in as an Audi all-wheel-drive name, it's just not anything like trade bait.