2006 Audi S4 V8 Special Edition Quattro Manual Carbon Fiber Navigation Beast on 2040-cars

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Electric turbos promise big performance and efficiency gains in the near future

An electric turbo system boosts efficiency between 15 and 20 percent, according to Audi.
Turbochargers, like acoustic guitars, use moving air to create magic. And electric turbochargers, like electric guitars, provide the ability to amp up that magic to amazing new levels.

Next Audi RS4 to get V6 turbo, US sales still unclear

Audi's high-performance S models have forged a reputation in the US for offering wonderful driving dynamics in a package that doesn't scream, "I bought a sport sedan." However, its even higher-performance RS models are still somewhat of a rarity here. While the RS5 and RS7 are in the current US lineup, many of the wild RS models that Europe gets, like the RS6 Avant (pictured above), never make it to these shores. Unfortunately, that might not be changing anytime soon with the next-gen RS4.
The RS4 will follow the lead of the next BMW M3/M4 and (rumored) next Mercedes-Benz C-Class AMG and make the switch to a smaller turbocharged powerplant. According to an Audi insider speaking to Car and Driver, the next RS4 will drop the last generation's 4.2-liter V8 in favor of a turbocharged V6. The engine block will likely be shared with the supercharged 3.0-liter V6 in the regular S4 but fitted with two turbochargers. Power would likely be around 400 horsepower to match the 425-hp M3 and rumored 450-hp C-Class AMG.
Unfortunately, the RS might not make it across the pond to our waiting hands because the source says no decision has been made to export them yet. Obviously, we hope that Audi makes the right decision and brings the next RS4 here.

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