2003 Audi Allroad Quattro Base Wagon 4-door 2.7l on 2040-cars

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Audi reveals new beefed-up A8 L Security

Audi claims is the lightest armored vehicle of its kind.
If there were ever a sedan that deserved the descriptor of "luxury," surely it's the Audi A8. Particularly in long-wheelbase form. But for many of Audi's wealthy customers around the world - namely those in developing markets - there can be no greater luxury than security. And for just those customers, Audi has announced the new A8 L Security.

Investors storm Volkswagen with $9 billion in lawsuits

Volkswagen's investors are latest group to take up pitchforks against the embattled automaker, and they're seeking $9 billion in damages, Reuters reports. The investor lawsuits were filed in a court in Braunschweig, Germany, near Volkswagen's Wolfsburg headquarters. On Monday, the first business day following the anniversary of the emissions revelations, the court received 750 lawsuits alone. All told, about 1,400 lawsuits have been filed. The largest single claim totals $3.7 billion and was filed more than six months ago. The lawsuits stem from complaints that Volkswagen didn't divulge information on the cheating software to investors quickly enough. Volkswagen has said that it hasn't broken any capital market laws. The $21.5 billion the company set aside to weather the storm may not be enough. The consumer fix is estimated to run the company $14.7 billion, either through buybacks or a fix that still seems unclear. In addition to the lawsuits, Volkswagen CEO Matthias Mueller confirmed that Audi boss Rupert Stadler is under investigation regarding the scandal. Mueller refused to give further details, but this shouldn't come as a surprise to anyone. Audi has admitted that its 3.0-liter V6 was equipped with the same emissions-cheating software as the 2.0-liter four-cylinder diesels. Stefan Knirsch, Audi's head of development, has been suspended as part of the overall investigation. Knirsch took over duties after his predecessor quit. Knisch was previously head of engine development at Audi. Related Video: News Source: Reuters Green Hirings/Firings/Layoffs Audi Volkswagen Emissions Diesel Vehicles vw diesel scandal

Audi is working on a suspension that gets power from bumpy roads

Regenerative brakes aren't new. They're on virtually every hybrid and EV, and they're even starting to pop up on traditional gas-powered cars, like with the i-ELOOP-equipped Mazda6. But even with these systems, cars can get more efficient, and Audi thinks it found yet another source of wasted energy. The source? The suspension. The idea is to turn the kinetic energy that goes into the dampers into usable energy instead of as waste heat. Audi isn't the first auto company to come up with regenerative suspension – nearly three years ago, ZF introduced its GenShock technology, which used a valve attached to traditional, oil-filled hydraulic shocks to recapture kinetic energy from movement caused by bumps in the road. Audi's prototype technology, which it calls eROT, replaces traditional dampers with horizontally oriented electromechanical rotary dampers. eROT is apparently short for electromechanical rotary damper. Neat. In testing, eROT recovered an average of 100 to 150 watts on a typical German road, three watts from a fresh piece of pavement, and 613 watts on a rough stretch of tarmac (wattage is calculated as power over time, so this is actually the rate at which the system harvests energy). The dampers channel that energy to a tiny, 0.5-kWh, 48-volt battery. The prototype is claimed to cut CO2 emissions by three grams per kilometer (4.8 grams per mile), while the company believes a future production version could save up to 0.7 liters of fuel per 100 kilometers of driving. Converting the savings to American miles per gallon isn't easy, so we'll use a practical example. In the US, the Q7's supercharged 3.0-liter V6 returns a combined rating of 21 miles per gallon, which works out to 11.2 liters per 100 kilometers. Apply eROT's 0.7L/100km savings, and the Q7's economy would improve to 10.5L/100km, or 22.4 mpg, a 1.4-mpg improvement. That's not huge, but because math, 0.7L/100km is more dramatic on a more fuel efficient vehicle – taking an A3's 27-mpg combined rating and adding eROT would drive efficiency up 2.4 mpg, for example. There are a few other big benefits beyond fuel and emissions savings – Audi claims eROT provides a more comfortable ride than traditional active suspensions, because engineers can tune the compression and rebound strokes independently of each other. Beyond that, the horizontally oriented rear suspension geometry means more cargo space, since the dampers don't poke up into the cabin like they normally do.