Audi has unveiled the high-performance S6 and S6 Avant models ahead of their debut at the Frankfurt Motor Show.
The S6 and S6 Avant are powered by a new twin-turbocharged 4.0L V8 that pumps out 
420 horsepower and 405 lb-ft. of torque. It reaches 0-62 mph in as little as 4.8 seconds and has a top speed of 155 mph. The 4.0L V8 is mated to a seven-speed S tronic transmission. The new engine replaces the old 5.2L V10 and is 25 percent more fuel efficient. A start-stop system and a new “cylinder on demand” cylinder management system help contribute to the reduce fuel consumption of the new engine.
The S6 and S6 Avant come standard with an adaptive air suspension, black brake calipers with S6 logos and 19-inch wheels. S6 models also stand out with four chrome-tipped tailpipes and a rear spoiler.
Other standard equipment on the S6 and S6 Avant includes xenon headlights, LED taillights, the MMI audio system with Bluetooth and ten speakers. Buyers can choose to add LED headlights, adaptive light, an ambient lighting package, convenience key, head-up display, and the parking system plus with 360° camera.
The S6 models are expected to be released in the spring.
