2005 Audi S4 Quattro Silver.. Manual Transmission.. Heated Seats Low $$$ *fl 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.

2016 Audi TTS

We recently drove the Audi TT, and although we wish it were radically entertaining instead of merely very fun, it's nevertheless a sharp coupe that vaults ahead of its predecessor with an inspired interior and eager handling. That car will be precursor to this TTS when it gets here a year from now, with the TTS adding adjectives like "more" and "better" to just about everything found on the base coupe. With the standard car having already put on such a fine edge, we wheeled the TTS on Spanish roads and at the Ascari race track to find out how much better and higher-performing the S will be.
Driving Notes
As of this writing, today's TTS commands an $8,350 premium over the TT. Assuming a commensurate gap is carried over into this next generation model, that supplemental dosh will get you 310 horsepower and 280 pound-feet of torque instead of 230 hp and 273 lb-ft in the standard TT. That would mean more for your money, too, since the gap between the current TT and TTS is 54 hp and zero lb-ft of torque. To achieve the new numbers, the 2.0 TSFI engine from the TTS benefits from upgrades like sturdier valves, revised aluminum pistons and stronger connecting rods with new bearings, a reinforced crankshaft and a high-performance intercooler. The amplified brawn rips 0.7 seconds off the 0-60 mile-per-hour time, getting you there in 4.6 seconds.

Recharge Wrap-up: Tesla seeks Gigafactory architect, Uber hails carpools

Tesla is looking for an architect to help design its proposed Gigafactory battery manufacturing facility. According to the Palo Alto-based job listing, which is titled "Architect - Gigafactory," the applicant must have, among other qualifications, over five years of experience with "high-tech infrastructure and operational facilities (semiconductor, solar, battery, waste water treatment plants, etc.)." The job also includes being away from home quite a bit, as it the listing states, "This full time role requires the flexibility of traveling when needed (up to 70 percent) and doing whatever it takes to achieve project objectives." Think you've got what it takes? See the listing for yourself, here, or read more at Silicon Valley Business Journal. Tesla has appointed Robyn Denholm of Juniper Networks to its board of directors. Denholm is Executive Vice President, Chief Financial and Operations Officer at Juniper Networks. Denholm replaces Brad Buss as chair of Tesla's Audit Committee and a member of the company's Compensation and Nominating and Corporate Governance committees. Buss will remain a member of Tesla's board as he joins SolarCity as CFO. Denholm is Tesla's first female director. Read more at Bloomberg, or in the press release below. Uber, the company behind the now famous ride-hailing app, is introducing its carpooling service, UberPool. The service matches drivers with (hopefully multiple) passengers going to similar destinations, with users paying just a fraction of the cost of a normal taxi, or even an Uber ride. If a rider can't get matched with a driver, they can enjoy a discounted Uber ride. As the company points out in its blog, "At these price points, Uber really is cost-competitive with owning a car, which is a game-changer for consumers." UberPool is currently running a private beta program, which it plans to expand on August 15. Read more in-depth about the UberPool at Forbes, or learn more at Uber's blog. For a few reasons why this new expansion might run afoul of archaic laws (put there to keep entrenched interests in play), check out Engadget. Plug-in hybrids are encouraging an evolution of transmission technology. Companies like Schaeffler and ZF Friedrichshafen are adapting their transmissions to include electric motors within them for use in plug-in hybrids. For example, the electric motor in ZF's eight-speed powers the transmission when the internal combustion engine is shut off.