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Audi TT spy shots reveal revised lighting elements

As we inch closer to an expected Geneva debut for the next-generation Audi TT, our latest round of spy photos are starting to give us an even better look at Audi's latest sports car. This time out, we're getting more details on the car's head and taillights.
It's safe to say that the new headlight design will not incorporate the twin rally lights we see mounted on the next TT's grille, but our spy photos do show off the wide, angular new lights in even greater detail than previous photos. The rear lights, meanwhile, look like they'll retain a similar shape to what's seen on the current car, while new LED details lend a degree of freshness to the look.
As we mentioned, we're predicting Audi will debut the next TT at the 2014 Geneva Auto Show in March. We expect, though, to have more on the car before that time. Stay tuned.

2018 Audi RS3 Sedan to make US debut in 2017 [UPDATE]

UPDATE: We've heard back from Audi, and the statement was as expected. According to spokesman Mark Dahncke, there's "nothing we can share at this time." We really want the Audi RS3 to come to the US market, and based on a report from Car and Driver, it doesn't sound like we'll be stuck waiting that long. The report claims the new compact rocket sedan will debut next year as a model year 2018 vehicle. Beyond that date, C/D's report expands on some of the details we reported on in our RS3 Sedan report from February. It backs up the claim about a 2.5-liter, turbocharged five-cylinder, but instead of a 400-plus-horsepower engine, C/D's report says it'd be "close to" 400 hp. That power would come from a turbocharged, 2.5-liter five-banger that's distinct from the unit currently offered in the Euro-market RS3 Sportback and the last-generation TT RS (the new 2.5 would first debut in that car's replacement). The new powerplant would be paired with Audi's seven-speed S-Tronic. According to C/D, all this powertrain goodness will allow the new RS3 to hit 60 in four seconds flat and run up to 174 miles per hour. If correct, that means Audi's newest high performer will be a tenth of a second faster to 60 and have an extra seven mph on the high end than the most potent Mercedes-Benz CLA45 AMG. And while the two-door BMW M2 isn't necessarily a direct competitor – because coupe – it's worth pointing out that the RS3 will be 0.2 seconds faster to 60 and have an extra 19 mph to its top speed. While C/D's report cites a "highly reliable source" for its information, we've naturally reached out to Audi to confirm as much as possible. We'll update this post as soon as Audi's PR team gets back to us. The company basically gave the usual "No comment." Related Video: News Source: Car and Driver Rumormill Audi Luxury Performance Sedan

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.