2005 Audi A6 Quattro Base Sedan 4-door 3.2l. Excellent Condition!!! 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.

2014 Audi RS7 [w/video]

The subject of what makes up a true "supercar" is a difficult one, fraught with personal connotations and the rare ability to bring close colleagues into heated confrontation with one another in the blink of an eye. I say this because, while the 2014 Audi RS7 most certainly does not make the supercar cut on a few levels to my way of thinking - not rare enough, expensive enough or wearing an appropriately evocative body - it is unquestionably an "everyday supercar" of remarkable ability. And, pertinently, it is one that proved willing to ply its trade in every version of winter that Michigan had to offer it.
I had winter four ways during my week-long loan with the RS7. A period of crisp temperatures and dry roads, presided over by light blue skies as wide as the horizon, soon gave way to spitting, freezing rain blanketed in slightly misleading warmer air. Then there was snow. Not the massive blanket we saw in the first week of the New Year, but more than enough to see my neighbors stocking up on Ice Melt and replacing their shovels for the season. Finally, temperatures dropped to the mid teens, cottony snow compressed into a hard pack and all residual moisture on the mostly cleared roads morphed into the very slickest of ice. Timeless curses were uttered by cranky commuters in smoking breaths. Pure Michigan.

The 2018 Audi RS3 sedan priced above the BMW M2 and Mercedes CLA45 AMG

Today, Audi finally released pricing for the 2018 RS3 sedan and it's not quite the performance bargain you may have been hoping for. The RS3 sedan, available for the first time in the US, will start at $55,875 when it hits dealer lots later this year. That's thousands more than the competition from BMW and Mercedes-Benz, though it's not quite a straight one-to-one comparison. View 23 Photos For reference, a BMW M2 starts at $53,495 while a Mercedes-Benz CLA45 AMG will set you back at least $50,875. With an all-new 400 horsepower inline-5 under the hood, the RS3 is packing more punch than its German rivals, and, unlike the M2, sends power to all four wheels. Standard features include LED lighting, Audi pre sense basic, and blind-spot monitoring. Other standard equipment hasn't been announced yet, so it's difficult to make a straight comparison to the M2 and CLA45 AMG. The RS3 sedan will make its North American debut next week in New York. While the car will hit full production for the 2018 model year, there will be a limited number of 2017 RS3s produced. At $55,450, the 2017 model is slightly less expensive than the 2018 RS3. That small batch will be preconfigured with carbon trim, Audi virtual cockpit with MMI Navigation plus, a Bang & Olufsen sound system, 19-inch, five-arm-blade design wheels, red brake calipers, and the RS sport exhaust system with black tips. Sounds like a good deal if you've already got your heart set on the latest from Audi Sport. Related Video: