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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.

The 2013 Rolex 24-hour race at Daytona comes down to the last hour [spoilers, w/video]

It took 24 hours to run the race, but it was the last one was stuffed with the high action as four cars were still trying to figure out how to gain victory on the track and in the pits. Along with the obligatory crashes, spins, mechanical issues and retirements had come numerous penalties, a double-digit number of full-course yellows and two hours of fog that turned early Sunday morning into a stretch of parade laps.
The final hour would make up for the morning - drivers who might have been happy just to get on the podium had a shot at victory as the end of the race approached, and that turned into a few gambles that paid off, and at least one that didn't...

2016 Audi TT price increased to $42,900*

Audi has announced pricing for the new third-generation TT and second-generation TTS, and both models have received a moderate bump. Simply getting into the family will demand $42,900, or $2,550 than the current coupe. If you fancy a topless TT, the price has jumped from $43,350 to $46,400, or $3,050 more than the last one. The performance-oriented TTS and its 292-horsepower, turbocharged 2.0-liter, though, is easily the bargain of the range. At $51,900, it's $3,200 more than the current model. But where the normal TT only gets a nine-horsepower increase and stays even on torque output, the TTS has gone from just 265 hp to 292 ponies. Torque is up as well, from 258 pound-feet (the same as the normal model) to 280-lb-ft. Prices for the TTS Roadster, meanwhile, have not been announced. That said, considering the increases through the rest of the range, we'd expect the high-performance two-seater to come in at or around the $55,000 range. Considering our impressions during our first drive of the standard TT and the performance increase for the TTS, we must say, these price hikes don't seem exorbitant. Scroll down for the official pricing announcement from Audi. AUDI ANNOUNCES PRICING FOR THE ALL-NEW TT MODEL LINE The quintessential design icon boasts a new driver-focused interior and true sports-car performance TT sets standards for in-vehicle technology with the Audi virtual cockpit - a fully digital instrument cluster Virtual cockpit powered by first automotive NVIDIA® Tegra® 30 processor integration May 06, 2015 | HERNDON, Virginia -- Audi today announced pricing for the all-new 2016 Audi TT model line. The iconic vehicle boasts an exciting new design characterized by the use of innovative technologies and driver-focused performance. Design and Body The third generation TT pays tribute to its past where the model took the design world by storm, with a modern take on the bold original, with short overhangs, broad wheel arches and a lean a muscular stance. Standard full LED headlamps exude modern sports car appeal, with a broader and flatter Singleframe® grille, sharp contours across the hood, electric rear spoiler and new centrally mounted round exhaust tailpipes are an incorporated design cue from the iconic first generation model . The all-new TT front end and floor assembly are made of high-strength and ultra-high-strength steel components, while the superstructure comprises aluminum castings, extruded sections and panels.