2016 Audi A8 3.0 Quattro Tdi Awd 4dr Sedan 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.

EVO takes flight in BMW's sultry i8

Electric cars and hybrids are here to stay, much to the apparent dismay of some auto enthusiasts, but that doesn't mean they have to represent the death of enjoyable driving. Granted, the initial run of hybrids in the US like the Honda Insight and Toyota Prius weren't exactly tailor-made for aggressive folks behind the wheel, but things are clearly changing. In its latest video, Evo takes a look at three examples from Europe's new crop of electrified vehicles to show that the future of fun motoring is safe and sound.
Evo editor Henry Catchpole kicks things off with one of the most bizarre EVs of the bunch, the tiny Renault Twizy. Its low power and 50-mile-per-hour top speed might make it miles away from a hot hatch, but there's still fun to be had in extracting the most from this little city car. Next up is the Audi A3 E-Tron, which isn't technically available yet. It's a step in the right direction of eventually creating an affordable, fun-to-drive hybrid hot hatch.
However, the main event is Catchpole getting some seat time in the BMW i8. The Bimmer can really fly -literally in this case - and the butterfly-door coupe offers a clear look at the prospects for electrified sports cars. It might not have the power of hybrid supercar contemporaries like the LaFerrari or Porsche 918 Spyder, but the BMW doesn't cost nearly as much, either. See? Improved efficiency doesn't have to mean boring.

Audi reveals updated RS7 Sportback in Europe

It was just a couple of weeks ago that Audi revealed a few mild updates to its A7. It even ported those changes over to the warmed-up S7 performance version. All that was missing was the full-steam RS7, and that's precisely what we have here.
Now before you get all excited, note that the new RS7 packs the same powertrain as the model it succeeds, but then again, the existing RS7 hardly lacked in the power department. The 4.0-liter twin-turbo V8 still churns out 560 horsepower and 516 pound-feet of torque, transmitted to all four wheels through an eight-speed automatic. Revealed initially for the European market (with US details presumably to follow), the 0-62 kilometers per hour time is quoted at 3.9 seconds, so the 0-60 mph time ought to match the 3.7 seconds of the preceding model.
What has changed are the subtle tweaks Audi has made to the exterior and equipment upgrades inside. The grille now features has a horizontal section at the bottom with the Quattro logo emblazoned across like all other recently revised RS models, flanked by new headlights (Matrix LED units for the European market). Inside the cabin the air-con vents and shift paddles have been reshaped, and the new MMI system ports over from the new A7 and S7 with 4G LTE connectivity and a Bang & Olufsen sound system.