2005 Audi Allroad Quatro on 2040-cars

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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 + Airbnb: What it's like to live in a car commercial

Miles from civilization, in a lonely stretch of Death Valley, lies an unlikely sight: a sleek contemporary home – all glass, concrete, and metal – and a pair of equally modern 2017 Audi R8 V10 Plus coupes. You might have seen the combo in a TV commercial that ran during the Emmys, a spot that had us asking an obvious question: What are these objects doing together, smack in the middle of nowhere? Audi partnered with Airbnb to offer the home and the cars to seven guests. Somehow, we became lucky number eight. The spot, entitled "Desolation," promotes the carmaker's flagship alongside what ended up being an extreme rental property. The idea to build the three-bedroom, 1,200-square-foot house came from Italian writer and author Fabrizio Rondolino, who was long smitten with American desert. The home was built in 2010 using prefabricated construction by San Francisco-based architecture firm nottoscale. It's a spare elevated structure, with floor-to-ceiling windows cinematically framing the sky. To set the four-wheeled mood, images of the R8 sit where family photos would go, and a laser-cut aluminum sign over the entrance announces it as the "Home of the R8." In acknowledgement of the remoteness, a satellite phone sits charged up with clearly printed dialing instructions. An Easter egg from the ad – two jars of Leadfoot Coffee – hides in plain sight on the kitchen counter. You can rent houses like this elsewhere on Airbnb, but here's where gearheads start paying attention: The two Audi supercars counter the architectural tranquility with a combined 1,220 horsepower and an opportunity to rip through the desert at obscene speeds (not to mention several other extras you don't get with a standard vacation rental; more on that later). Seven three-day/two-night stays were offered through an extremely limited Airbnb listing. The buzz surrounding the campaign was so strong that the place booked up in less than six seconds. For what you get, this was a steal. The per-night price of $610 – a reference to the V10's horsepower figure – wouldn't begin to cover the behind-the-scenes logistics needed to coordinate and execute this marketing exercise. I was the sole member of the media invited to experience the Audi Airbnb and got to spend a weekend in this desert playground to see what it was all about. My weekend began when an Audi rep met me and my family at Las Vegas International Airport following a quick flight from Burbank, California.

Toyota Corolla Cross, Audi Q4 Sportback E-Tron and which beers are like which cars | Autoblog Podcast #635

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Consumer Editor Jeremy Korzeniewski and Senior Editor, Green, John Beltz Snyder. They're thirsty this week, but first, they talk about the Subaru Forester and Lexus NX they've been driving. They dig into the news about the Toyota Corolla Cross, Audi Q4 Sportback E-Tron and J.D. Power's surprising Initial Quality Study results. A longtime Autoblog Podcast listener suggested our editors try to relate some of their favorite beers to their favorite cars, and they happily oblige. Finally, they help a listener choose a new car in the "Spend My Money" segment. Autoblog Podcast #635 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Cars we're driving Long-term 2019 Subaru Forester 2020 Lexus NX 300h News Toyota Corolla Cross is headed our way Audi Q4 Sportback E-Tron concept revealed Dodge and Kia lead J.D. Power 2020 Initial Quality Study Cars and their beer counterparts Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Show full video transcript text - Hey, everybody. This is Autoblog Podcast producer Eric here. I'm just hopping in quickly at the beginning of the episode to let you know that this episode of the Autoblog Podcast is brought to you by these SoFi Daily Podcast. Reaching financial independence starts with having the right information. So every weekday morning, SoFi keeps you up to date with important business news and stock market happenings and how they affect your financial life. So get your money right and search for SoFi-- that's S-O-F-I-- wherever you get your podcasts. On with the show. [THEME MUSIC] [ENGINE REVVING] [CAR DRIVES AWAY] GREG MIGLIORE: Hello, and welcome to another episode of the Autoblog Podcast. I am Greg Migliore. We have a great show for you today on this hot, sizzling Thursday afternoon in July. Joining me today is senior editor for all things green, John Snyder. What's up, man? JOHN BELTZ SNYDER: Hey. Just trying to beat the heat with some iced coffee today. GREG MIGLIORE: Sounds good, sounds good. My coffee is just cold because I haven't microwaved it in a while. And chuckling at that remark-- charitably, I guess-- is consumer editor Jeremy Korzeniewski. How you doing? JEREMY KORZENIEWSKI: I'm doing good. I-- I mean, unlike you guys, I stopped drinking coffee about an hour ago.