10 Audi A6 Premium Plus Quattro Awd Navi Gps Cd Changer S Line on 2040-cars

Auto blog

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.

Audi-only rental car company expands

With the lines and occasional hassle, getting a rental car after a long flight can be daunting, even if you already have a reservation. Now, a company called Silvercar is trying to inject some luxury and modern, high-tech features into the process to make it less of a chore. The business recently expanded to O'Hare International Airport to offer visitors to Chicago a fleet exclusively comprised of silver Audi A4s. Silvercar is based in Austin, TX, and is being run by Luke Schneider, a former chief technology officer at ZipCar. He told Crain's Chicago Business that the rental industry "hasn't innovated in 30 to 40 years." Silvercar's big innovation is in the booking process. Like ordering practically anything today, it's all done through a smartphone app. Customers then scan a QR code on the Audi's windshield to get going. At the end of the rental, the bill is emailed to you. Prices start around $59 a day on weekends and $89 during the week, according to Crain's. Because they're all A4s with GPS and Wi-Fi, everyone gets the same car. In the world of ridesharing companies like Uber and Lyft, rental cars might seem passe, but according to Crain's, the rental market at O'Hare alone amounts to over $300 million a year. Silvercar's location there isn't at the actual airport, though. Instead, a shuttle picks up customers to take them to the company's site nearby. The business is working on a national rollout to 10 airports by the end of June, including major locations like LAX and Denver. Related Video: The video meant to be presented here is no longer available. Sorry for the inconvenience.

Next-gen Audi A4 spotted

With fresh entries from Lexus and Mercedes-Benz and a newer entry from BMW, Audi is in a rather precarious position with its A4 sedan, which has been on sale in its current form since 2008 (aside from its 2012 mid-cycle refresh). It's high time a new vehicle takes its place.
If Audi follows convention, the vehicle shown above will be known internally as the B9, and will ride atop the so-called MLB Evo, a new version of the modular platform underpinning the current A4 (and a whole heap of other Volkswagen Group products). That new bit of hardware should bless the next-gen A4 with a weight savings of anywhere from 175 to 220 pounds.
In terms of its looks, our spies point to a more evolutionary approach. Expect the A4 to borrow from the design being pioneered by the third-generation Audi TT, particularly around the grille, which should be more upright. The wheelbase should get a stretch while Audi will clip the overhangs of its midsizer, relative to the current sedan.