1999 Audi A6 Quattro Base Sedan 4-door 2.8l Low Miles 96k Safe, Fully Loaded on 2040-cars

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The Audi Q7 doesn't want me to speed and I'm not totally okay with that

I'm a big fan of adaptive cruise control. My commute is 50 miles each way, almost all on freeways here in Michigan. If everyone drove at the same speed there'd be little need for smart cruise, but I live in reality where people camp out in the left lane and practice going from the gas to the brake for no apparent reason. Radar cruise systems let me set my max speed and just worry about steering. But Audi has gone a step further with its adaptive cruise system. And it's a step I'm not sure I'm comfortable with. Audi's system, as featured on the new Q7, has a feature that uses the forward-facing camera to read speed-limit signs, something that's becoming common in Europe and is now making its way here in the continent's luxury cars. That part's fine; it's useful information and gets nicely integrated into Audi's Virtual Cockpit screen and on the head-up display. What the car then does with that info, however, is the issue: If your set cruise speed is higher than the speed on a sign you pass, the car will drop the cruise speed down to the limit. But it's not perfect. On one stretch of highway, the Q7 picked up the speed limit posted on the parallel service road, dropping me down from a little above the limit to 30 mph. It didn't slam on the brakes, but it did confuse me at first and require intervention before the car slowed down to a crawl. This feature isn't ready for primetime. Luckily, it can be turned off or switched to a mode where it gives you a warning that the speed limit has changed (or at least that the car thinks it has) and lets you react before the set cruise speed is changed automatically. When activated, it's a safety issue. A more serious one, in my opinion, than driving a little over the speed limit, especially when it means interrupting the flow of traffic. There's nothing predictable about a car trundling along in the fast lane and then completely letting off the gas. It's not predictable for the driver behind you, and it's not something a driver expects of their own vehicle. Yes, this feature was obviously developed for people driving on the Autobahn, where speeds can drop down from unlimited to a slow crawl pretty quickly when entering a construction zone or approaching a built-up area. German roads also have more consistent signage, so the false-positive scenario I experienced might not have come up there.

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.

2016 Audi RS 7 Performance Quick Spin

Audi's roster of Sevens – the A7, S7, and RS 7 – gets a new and overachieving member with the new RS 7 Performance. The big story is that it ups the RS 7's 560 horsepower to 605. And while the advertised torque rating of 517 pound-feet doesn't change, Audi says the car will actually produce 553 lb-ft during moments of overboost. Hunkered-down with 21-inch wheels filling the wheel wells, the RS 7 Performance has a top speed of 190 miles per hour, and runs to 60 mph in 3.6 seconds – our informal stopwatch tests suggest that may even be conservative. We drove the RS 7 Performance in Florida, which included an eventful lap around Daytona International Speedway's road course, just prior to the Rolex 24 Hours at Daytona. More about that in a moment. Driving Notes The RS 7 Performance is pretty rough-riding at its softest, a problem only on bad pavement and roads with dips. It isn't punishing, but it never lets you forget this is a performance luxury car, in that order. The eight-speed Tiptronic automatic transmission is a sweetheart, never confused and always standing by to maximize the 4.0-liter, twin-turbocharged V8's muscle. It would have been nice to be able to dial in a little extra exhaust sound – what you can hear makes you want more. The RS sport seats, with optional Valcona leather and Alcantara inlays and steering wheel cover, are excellent. There's a reason why Audi is a template for automotive interior designers. Rear seat room is a little tight but tolerable. As for that lap at Daytona: We were only given one, so we went for it, and hit 164 mph on the back stretch before having to wade deep into the ABS for the bus stop turn. The engine was still pulling hard – we have little doubt the advertised 190 mph top speed is accurate. While the big ceramic brakes did their job, we weren't given a cool-down lap, and the combination of 4,500 pounds and 164 mph seemed to have set the front brakes on fire. No, really. It took a spritz of water to drown them out. We were told that it isn't unusual for ceramic brakes, the first time they hit 800 degrees, to burn out some impurities. Afterwards, the brakes worked fine, but we sure got a lot of attention from the IMSA Rolex crew on pit road. The RS 7 Performance is a viceless car, one we'd cheerfully drive for a very long time.