2019 Audi S4 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.

24 Hours of Le Mans live update part two

We tasked surfing journalist Rory Parker to watch this year's live stream of the 2016 24 Hours of Le Mans. What follows is an experiment to experience the world's greatest endurance race from the perspective of a motorsports novice. Parker lives in Hawaii and can hold his breath longer than he can go without swearing. For Part One, click here. Or you can skip ahead to Part Three here. I write about surfing for a living. If you can call it a living. Basically means I spend my days fucking around and my wife pays for everything. Because she's got a real job that pays well. Brings home the bacon. Very progressive arrangement. Super twenty first century. I run a surf website, beachgrit.com, with two other guys. It's a strange gig. More or less uncensored. Kind of popular. Very good at alienating advertisers. My behavior has cost us a few bucks. I'm terrible at self-censorship. Know there's a line out there, no idea where it lies. I still don't understand any of the technical side. Might as well be astrophysics or something. For contests I do long rambling write ups. They rarely make much sense. Mainly just talk about my life, whatever random thoughts pop into my head. "Can you do something similar for Le Mans?" "Sure, but I know absolutely fuck-all about racing." "That's okay. Just write what you want." "Will do. But you're gonna need to edit my stuff. Probably censor it heavily." So here I am. I spent the last week trying to learn all I can about the sport of endurance racing. But there's only so much you can jam in your head. And I still don't understand any of the technical side. Might as well be astrophysics or something. While I rambled things were happening. Tracy Krohn spun into the gravel on the Forza chicane. #89 is out of the race after an accident I missed. Pegasus racing hit the wall on the Porsche curves. Bashed up front end, in the garage getting fixed. Toyota and Porsche are swapping back and forth in the front three. Ford back in the lead in GTE Pro. #91 Porsche took a stone through the radiator, down two laps. Not good. The wife and I are one of those weird childless couples that spend way too much time caring for the needs of their pet. French bulldog, Mr Eugene Victor Debs. Great little guy. Spent the last four years training him to be obedient and friendly. Nice thing about dogs, when you're sick of dealing with them you can just lock 'em in another room for a few hours. You don't need to worry about paying for college.

2016 Audi S6 and S7 First Drive

Audi paired the S6 and S7 for the purposes of this test in Southern California, but these are rather disparate cars. A three-box sedan, even a sporty one like this S6, is for a specific kind of customer. A sleek, four-door hatchback like the S7, on the other hand, is for a different kind of person. These two people might not be as different as Dr. Jekyll and Mr. Hyde, but at the very least the S7 is the S6's lothario neighbor – the one who's always got a glass of scotch in one hand and a chambermaid in the other. A day spent in the canyons around Los Angeles proves there's a big difference between these cars. First, though, let's discuss their similarities. The S6 and the S7 get the same design overhaul we detailed in our piece on the 2016 Audi A6, namely the edge work done on the grille, bumpers, headlights, and taillights. Additionally, they get Audi's new MMI system – the brand's next step in infotainment. A day spent in the canyons proves there's a big difference between these cars. Changes exclusive to these S models include flat-bottomed steering wheels with model badges at the base of the center spoke, and aluminum-finish shift paddles. The pedals and footrest get the aluminum look as well. There's also a new shift lever, and a revised design for the Quattro badge. New seat and surface treatments join the options list, such as Beaufort Walnut inlays and Valcona leather seats in Cedar Brown. The S7 has a new Arras Red interior option as part of its design selection palette, but the striking addition there is the carbon fiber inlay it comes with, which is interwoven with a red thread. You lean in really, really close and see that scarlet yarn, and the cockpit immediately feels more special. It's the kind of beautiful subtlety you expect from Audi, and the result is a scrumptious cabin. The twin-turbo, 4.0-liter V8 gets 30 more horses, topping out at 450 horsepower. Torque remains the same at 406-pound-feet, but fuel economy increases ever so slightly to 18 miles per gallon in the city, 27 mpg highway, and 21 mpg combined. The S6 makes a meal of curves, but it does give away a hint of the effort. It seems that a fair number of buyers wanted S vehicles without the whole suite of go-fast bits; they liked having the "S" on their chests, they didn't need all of the superpowers. Thus, Audi took the Quattro sport differential and dynamic steering off the standard menu, and bundled it with the sport exhaust to create the now-optional Sport Package.