Audi RS6 driving impression

Take one facelifted Audi A6, insert a twin-turbo 5,0-litre V10 from a supercar, and subtly tweak those Ingolstadt lines… could this be the perfect recipe for an “über-saloon”?In terms of its exterior styling, the Audi RS6 has the uncanny ability to seemingly morph from executive cruiser to sinister-looking ...