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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.

How Audi keeps it fresh in the design department

Audi was, even very recently, seen as a near-luxury brand, on par with niche if specific European automakers like Saab and Volvo. But early in the 21 st century, the four-ringed circus from Ingolstadt found a way to elevate itself to the level of its aspirational German rivals at Mercedes and BMW. While these brands were immersed in what we like to refer to as their Baroquecoco Period – a moment in which the exteriors of their cars gained bulges and, ahem, bangles, and their interiors failed to keep pace with the march of technology – Audi kept it simple. Its designs avoided the imperious Faberge gilding of Benz, or the Ghery-esque swoop and swoon of Bimmer. Instead, they were clean inside and out, with simple and elegant lines, comprehensible ergonomics, and subtle new signatures that were recognizable without being in any way overwrought. Customers, alienated by their rivals, flocked. Sales rocketed. And Audi became known as a formal/functional design leader – the Mid-Century Modern Architecture of the luxury vehicle world. But now BMW and Mercedes have taken note and corrected course. Both brands have discarded their dalliance with carbuncularity and are now, debatably, near the top of their game design-wise. Benz is delivering handsome stolidity not seen since the Bruno Sacco era of the Seventies and Eighties, and BMW has regained a grip on the kind of elegant sportiness characterized by Paul Bracq during the same time period. And the interiors of both brands are consistently on a level of craftsmanship, attention to detail, delight, and material selection and innovation once reserved for Bentley and Rolls. View 17 Photos This puts Audi in something of a design double-bind. First, its transaction price has escalated to the point where it lives in the same set as BMW and Mercedes. But now that those brands have caught up with (or perhaps even surpassed) the crisp Auto Union sensibility, how does it differentiate itself? "You have to have a clear design theme," says Frank Lamberty, Audi's exterior design director. "We define this as Quattro, because this is unique for Audi, this is our tradition. And Quattro means we have all the wheels powered, so we want to show that in our design. And this is different from a rear-wheel-drive car. We are coming from a front-wheel-drive platform, so everything is more balanced. Everything is in the middle, rather than leaned back. That is a clear proportion thing.

Audi and Jaguar Land Rover recalls address seatbelt issues

Audi and Jaguar Land Rover are each recalling several thousand vehicles for separate potential seatbelt issues. The recalls cover the 2022 Audi A3 and S3; 2022 Jaguar F-Type, F-Pace and XF; and the 2022-23 Land Rover Defender, Discovery, Discovery Sport, Range Rover Sport and Range Rover Velar. Examples of these vehicles may have shipped with seatbelt pretensioners that will not function properly in the event of an accident.  Audi is recalling its sedans for tensioner devices that may not adequately restrain drivers or passengers during a crash. The issue was discovered during Korean market crash testing of the high-performance RS 3.  "The seat belt tensioner in the affected vehicles serve the purpose of holding the passenger in his position in the seat," Audi said in its defect report to NHTSA. "In the event of a crash, the retention force of the seat belt may not reach the intended level. As a result, the position of the body can be further to the front of the seat, which leads to a negative influence on the whole restraint system, increasing the risk of injury." A different company, Jaguar Land Rover (JLR), meanwhile, also has an issue with a batch of pretensioners installed in its cars and SUVs. Pretensioners are the devices that fire off to rapidly retract the seatbelt when a crash is detected. Most utilize an explosive charge and pressure tube JLR says that some pretensioner devices provided by one of its suppliers may not have properly-specified pressure tubes that may not channel the gasses to the retraction mechanism correctly.  "A damaged front seat belt pretensioner tube may have been installed on the seat belt retractor," JLR's report said. "This may result in a reduced level or complete loss of pre-tensioning in the event of a crash and increased occupant injury." Owners of the models included in both recall campaigns should receive notices from the manufacturers in the coming months.  Related video: Recalls Audi Jaguar Land Rover Ownership Safety SUV Sedan