2009 Audi A4 Cabriolet: S-line 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.

New Tesla, McLaren, and Ferrari models added to Takata recall list

UPDATE: A McLaren spokesperson confirmed to Autoblog that "a number" of McLaren models in the US, Japan, and South Korea will be recalled to fix non-dessicated airbag inflators. However, the recall only affects passenger airbags, as all driver's-side inflators use a different technology and are not affected. The timeline is still being determined. It's been more than two and a half years since the Takata airbag recall first made waves. Despite knowing which airbags were at fault and the exact cause of the failure, manufacturers like Audi, Ferrari, McLaren, and Tesla have been building and selling cars with defective airbags. Although it takes several years for the airbag to degrade to the point of failure, all of these new cars will eventually have to be recalled for replacements. It appears that time has come, as the National Highway Traffic Safety Administration has now issued a recall on some of these new models. Models from Tesla and McLaren have been added to NHTSA's recall list for the first time. Tesla is recalling every 2012 - 2016 Model S while McLaren is bringing back every model it's made since relaunching its road-car business in 2012. Not even the P1 is free from failure. Other automakers have expanded their affected-vehicle list. All of Ferrari's 2016 - 2017 lineup now falls under the recall and joins a number of previously recalled models, while Audi is recalling the 2017 R8. Since the recall started, dozens of automakers have recalled millions of affected cars to replace potentially fatal and highly flawed airbags that can deploy bits of metal at occupants. Eleven deaths in the United States are directly related to the faulty airbags. Before the recall, Takata held a sizable share of the airbag market. When the failures began to occur, some automakers were left with no alternative suppliers. As it takes a few years for the airbags to fail, automakers without other options faced a choice: they could either build cars that would be recalled in the future or stop building cars altogether until a secondary supplier could be found. These recalls seem to be happening so frequently that owners may not know what to do or where to check to see if their car is potentially affected. NHTSA is keeping a comprehensive list of all affected models. Their website can help owners determine if they have a potentially problematic airbag installed and the steps to take to replace it.

Audi A6 and A7 get a fresh face and upgraded equipment

It's been six years since the introduction of the Audi A6 and A7, but the automaker isn't ready to replace them just yet. So, in order to keep up with fresher competition, Ingolstadt has given its mid-range lineup a bit of a refresh. That includes not only a subtle facelift, but some new equipment, as well. The refreshed models benefit from new front-end styling, side sills, rear bumpers, and rear diffusers that look incrementally sharper than the existing versions. The updated interior features LED ambient lighting, with new trim options to join the expanded range of exterior colors and wheel choices. The infotainment system has been upgraded, and there are tablets mounted to the seatbacks to keep rear-seat passengers entertained. The sum total definitely falls in the evolutionary rather than revolutionary category. But they promise to help attract customers to Audi showrooms who might otherwise be lured towards the newer Mercedes E-Class, Cadillac CTS, Jaguar XF, or Maserati Ghibli, while keeping pace with the BMW 5 Series and Lexus GS that are growing just as long in the tooth. The updates are applied not only to base A6 and A7 models, but also to the Allroad Quattro and the S6 and S7 performance models. Audi says these refreshed cars will be available to order soon for delivery in the summer, and best of all, it hasn't raised the sticker prices in the process. Related Video: 04/22/16 Ingolstadt New look and new equipment – Audi A6 and A7 getting even more attractive - New highlights for exterior and interior and for equipment - Even more connectivity and entertainment on offer - Comprehensive equipment package for the Audi A6 allroad quattro Audi is making its full-size A6 and A7 Sportback* car lines even more exclusive. The exterior of the Sedan and Avant is set to become a touch sharper, with all models featuring interior enhancements and new equipment. There is a new, comprehensive equipment package for the A6 allroad quattro*. The updated full-size family is available to order worldwide soon. Deliveries will take place in the summer. Quality, design and technology – those are the key selling points for Audi full-size models. With the start of the new model year, the brand is further enhancing its models.