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Next Audi RS4 to get an electric turbo?

We don't yet know if the next Audi RS4 will come to the US, but whoever gets it could find an electric turbocharger under the hood according to a report in Auto Express. The 4.2-liter V8 that has served for two RS4 generations is retiring from the line, replaced by a twin-turbocharged version of the supercharged 3.0-liter V6 used in the S4. But instead of using two sequential turbochargers - a smaller one to eliminate lag while a larger, more powerful turbo spools up - batteries charged by brake regeneration could power a first-stage electric turbo. The idea hasn't been publicly appointed for a particular model, as Audi's technical chief Ulrich Hackerberg has said that due to expense, that kind of setup "would only be used be used on the very top end models." Since the technology cuts down on the use of exhaust gases, it would also also help in markets like Europe where CO2 emissions are a factor. No matter whether it benefits from all conventional or some electric boost, the horsepower number for the twin-turbo V6 will be more than 420 hp but less than 503 hp, the rating of the V8-powered Mercedes-Benz C63 AMG. Auto Express believes Audi will want to maintain the power gap between the 333-hp S4 and previous, 444-hp RS4. With Hackenberg saying the new S4 will make more than 350 hp, that gets the coming RS4 up to at least 461, but AE figures it "could deliver as much as 480 hp." We'll find out sometime after the S4 launches next year.

Audi A8 could spawn Mercedes-Maybach S600 rival

Five years ago, there was no middle ground for big luxury sedans. You either bought a $100,000 Mercedes-Benz S-Class, Audi A8, or BMW 7 Series, or you spent $225K on a twelve-cylinder Bentley Continental Flying Spur. But today, the market is changing. Bentley sells a V8-powered Flying Spur for around $200,000 and Mercedes is successfully selling a longer, twelve-cylinder, ultra-lux S-Class for $190,000. The middle ground is growing, and Audi wants in on the action. Audi is looking closely at the Mercedes-Maybach S600, according to Dr. Stefan Knirsch, the company's new technical leader. The company recently introduced a one-off A8 limo, shown above, although we'd imagine an S600 rival would be a more manageable size. "We are thinking about it," Knirsch told AutoExpress at the launch of the new SQ7. "The success of the extra-long version of the S-Class has got us wondering about whether there could be a business case for that in the future." Knirsch's comments raise a number of questions about a potential ultra-lux A8. Would it be longer than the A8L? The extra backseat space is a key part of the Maybach S600's appeal. What about the badge? Audi doesn't have a nameplate to rival Maybach to distinguish such an exclusive A8 from its more affordable siblings. Will the Audi offer more or fewer shades of black/silver than the S600? But the biggest question is what a bigger, more luxurious A8 could mean for the rest of the A8 range. As AE explains, Mercedes has done a remarkable job of fleshing out the S-Class range, with the normal sedan, Maybach, Coupe, Cabriolet, and their accompanying AMG variants. The Maybach S600 started that process – could an extra-large competitor kickstart Audi's full-size luxury expansion? The A8 has long been subject to gossip that it'd spawn an A9 Coupe (2014's Prologue Concept only fed that particular rumor mill), after all. Beyond hinting at a more luxurious A8, Knirsch expounded on another piece of exciting news: the next A8 will get Level 3 automation. That would mean full driverless ability "with the expectation that the human driver will respond appropriately to a request to intervene," according to the SAE's official definition. While Audi confirmed last year that the A8 could drive itself at speeds up to 37 miles per hour, Knirsch's more specific comments make it sound like the system could be even more advanced than originally thought. Related Video:

Audi tech counts down red lights today, reduces traffic tomorrow

Audi announced today that in Washington D.C. and Las Vegas, select Audi Q7 and A4 models will be able to take advantage of new vehicle-to-infrastructure technology. The technology was developed with Traffic Technology Services and will allow drivers to see how long it will take for a traffic light to change to green. Compatible traffic lights will send information through servers operated by Traffic Technology Services to properly equipped Audis. This may not sound like an earth-shattering feature at first, unless you're a stoplight drag racer – if Audi has its way, it may shut off the timer at about 10 seconds to prevent such a thing – but the technology opens up the door to much more useful features down the road. Audi's general manager for connected vehicles, Pom Malhotra, suggested that the information could be used with "vehicle navigation, engine start/stop functionality and can even be used to help improve traffic flow." More specifically, navigation could account for traffic light timing to divert drivers to a more efficient and faster route. It could even suggest acceleration and speed to hit signals when they're green, minimizing stops and starts. Then, for engine start and stop features, the car could selectively shut off at long stops but remain on when approaching a light that's about to turn green. Traffic lights could also start adjusting patterns based on how many cars are approaching a light or are stuck at a light, alleviating slow-moving traffic. Vehicle-to-infrastructure communication could lead to roads that waste less time and less energy. While Audi didn't elaborate on this topic, vehicle-to-infrastructure technology could also be useful for future autonomous car technology. For instance, the car wouldn't necessarily have to "see" the actual traffic light. Instead, it could rely on a separate signal from the smart traffic light to know it has to stop or go. Going a step further, the technology could be used to manage traffic so precisely that traffic signals are no longer needed, as some other groups have investigated. And, of course, the aforementioned benefits in navigation technology would help autonomous vehicles make smarter route decisions as well. The feature is currently only available on Audi Q7, A4 and A4 allroads built after June 1, 2016. It's also only available as part of Audi connect PRIME, a subscription-based service that provides various infotainment and streaming features for your Audi. While D.C.