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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.

Spyker C8 Aileron to come back with supercharged power?

The new B6 Venator wasn't the only vehicle on display at the Spyker booth at the 2013 Geneva Motor Show. The company still has its C8 Aileron on offer, and Road & Track has word of a potential powerplant upgrade for the long-running machine.
Since its introduction in the year 2000, the C8 has used a 4.2-liter V8 engine sourced from Audi, which, in base form, offers up 400 horsepower. Though it's a great powerpant, that's simply not enough power in this day and age - after all, if a car is going to be called super, it needs to offer more ponies than something as mundane as the Ford Mustang GT.
According to R&T, John Walton, Chief Commercial Officer at Spyker, indicated that a new engine supplier may be in the works. "[The Audi-sourced V8] really hasn't got enough bang for the buck. To be honest, every supercar needs to have something that begins with a '5' today. That's why we're supercharging the car in the future, which will take it to over 500-hp," said Walton.

2018 Audi A5 and S5 Sportbacks are coming to America

Fans of hatchbacks have cause for celebration, because Audi confirmed the 2018 A5 and S5 Sportback models are coming to the US. The five-door variant of the classy A5 coupe and convertible line will appear in America this spring. Pricing was not announced. While we will be getting the hatchback, we won't get every powertrain option offered in Europe. Those versions will be offered with an array of gas and diesel engines, and some will be available with a manual transmission. We'll only get two engines here, and they both come with automatics. The standard A5 Sportback will come with the same turbocharged four-cylinder as the A5 coupe and convertible and the A4 sedan. It makes 252 horsepower and 273 pound-feet of torque of torque and is paired with a seven-speed dual-clutch transmission. The S5 Sportback gets the same 354-horsepower turbocharged V6, which also makes 369 lb-ft of torque and sends power through a conventional 8-speed automatic. Both Sportback models are nearly as fast as their two-door siblings, reaching 60 mph in 5.7 and 4.5 seconds respectively. That's just a tenth of a second slower than either coupe. The Sportback also has one more difference compared with the European version. All American A5 Sportback models will come with Audi's Quattro all-wheel-drive. The Sportbacks feature similar interiors to their coupe and convertible brethren, along with the same infotainment options. This includes the available Virtual Cockpit LCD instrument panel and MMI system. Of course the biggest difference between the Sportback and the two-door models is space. Audi claims the Sportback has twice as much cargo room as the coupe. And the back seat will obviously be much more comfortable and usable. View 14 Photos You don't sacrifice too much in style, either. The A5 coupe's distinctive, Coke-bottle character line has made the transition to a longer profile gracefully, and it's complemented by the greenhouse inspired by the bigger A7 Sportback. So if you've always wanted an A5 for its looks, but felt you needed something more practical, you won't have to compromise with the Sportback. Related Video: