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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.

2015 Audi RS5 Coupe Sport is one of 75

Audi has released a new limited edition of its V8-powered RS5, with the 2015 Sport edition. Limited to just 75 units and designed by the German manufacturers Exclusive customization team, the stylish RS5 starts at $87,575. That's nearly $17,000 more than the standard RS5, although you might struggle to see why. The Sport adds beautiful 20-inch 5-V-spke wheels, along with plenty of nice leatherwork in the cabin. That includes the black-and-Crimson-Red Nappa leather seats, which feature an embossed RS logo in the seatback, as well as Crimson Red leather door inserts. Contrast stitching in the leather-wrapped wheel and shifter boot match the shade on the seats and door inserts. Audi will paint the limited-edition RS5 in either Daytona Gray or Nardo Gray for no charge or, if you're willing to pay a bit more, you can chose from one of the shades from the manufacturer's Exclusive catalog. There's no mention of how much these custom hues will cost, though. Beyond that, the RS5 Sport is the same thumper that's been on sale for several years, with a 4.2-liter, 450-horsepower V8 under the hood and a seven-speed, S-Tronic transmission dispatching power to a Quattro all-wheel-drive system. Featured Gallery 2015 Audi RS5 Sport View 9 Photos News Source: Audi Audi Coupe Luxury Performance

Watch Audi R8 give Birth to RS3

In the cold light of reality, it's a fairly dubious proposition to suggest that the Audi RS3 Sportback shares much of a mechanical relationship with an R8. One of them is supercar with a snorting V10 and lithe body, while the other is a still-capable hot hatch with roots lower in the brand's range. However, marketing doesn't necessarily have to sell real life, and Audi's advertisers are nailing the emotional pull of these two models in a spot called Birth. With dramatic music and a sci-fi aesthetic, the R8's V10 roars as the supercar stretches and deforms, and eventually the hot hatch gets plucked from its metallic loins. Regardless of how closely these two models are related, this commercial looks and sounds fantastic. With the US rumored to get the RS3 in sedan form at some point, hopefully we get a tweaked version of this ad.