Audi Mission Viejo presents the new 2013 Audi S6 performance model which includes a newly-developed, super-efficient 4.0-liter twin-turbo V8 engine, complete with 420 horsepower. Built on the already well-respected Audi A6 platform, the all-new Audi S6 adds exhilarating performance, intelligent efficiency technologies and exclusive “S-model” design cues. The new S6 will be delivered with the new twin-turbo 4.0 TFSI® engine [...]
