Audi S6 and S7 debut with turbocharged V6 power

Audi S6 and S7 debut with turbocharged V6 power

The Audi S6, S6 Avant, and S7 have made their official internet debuts, and the old car's turbocharged V8 engine is no longer on the menu. Power for models headed to the United States will come from a 2.9-liter TFSI gas engine with 450 hp and 443 lb-ft of torque, using the same engine as in our RS5 Sportback but with six more ponies and the same twist. Rumor eight years ago had it that the S6 and S7 would get the choice of a diesel engine.