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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.

Giorgetto Giugiaro sells shares in legendary styling house to Audi

Giorgetto Giugiaro undoubtedly stands among the great automotive designers of the 20th century, having penned the original Volkswagen Golf and Delorean DMC-12, among countless others. However, the great stylist is now longer an employee or even an owner of the company that bears his name. According to Automotive News, Giugiaro and his son, Fabrizio, sold their remaining 9.9 percent of Italdesign Giugiaro to Audi on Sunday, June 28, and the two resigned from the business the following day. The news about this just came out, though. The exact reason that the two men left the company hasn't been made entirely clear. According to Automotive News, a statement said that Giorgetto Giugiaro went "to dedicate more time to his personal interests." Italdesign Giugiaro remains open and intends to keep growing, though, the same announcement asserts. After stints at Bertone and Ghia, Giugiaro founded Italdesign in 1968. He created some masterpieces there, including '70s wedges like Maserati Merak, Lotus Esprit, and much more. The 2000s weren't so kind and 90.1 percent of the company was sold to Volkswagen Group in 2010. Former Audi design boss Wolfgang Egger took over styling duties there in late 2013, but he only lasted for about a year, leaving in late 2014. Since the sale, Italdesign has continued to work, including with the Gea concept at the 2015 Geneva Motor Show and the very mean-looking Parcour in 2013. Giugiaro's designs are still highly prized, as well. On September 5, Bonhams is auctioning the Maserati Boomerang concept by him and expects to get around $4 million for it. The gallery above offers a few more examples of his and Italdesign's concepts for VW Group over the years.

2012 Seat Exeo is Audi with the old, in with the new-ish

We know what you're thinking: This car looks an awful lot like an Audi A4. But it isn't. And it is.
Regular readers may be aware that Audi's Spanish sister-company Seat inherited the previous-generation A4 some time after it was replaced. They put some new badges on it and presto! A new flagship model for Seat.
Called the Exeo, it has now undergone a minor facelift that did nothing if not make it look even more like an Audi, if that were possible, and we got up close and personal with the new model here in Frankfurt. Check it out in our high-res gallery of live images from the show floor.