Audi switched to a free-breathing V10 and a six-speed cog swapper for the C6, then returned to forced induction and eight cylinders for the C7 that ran from 2013 all the way through 2018.

This 740HP Audi RS6 C7 fitted with a Milltek exhaust system is an absolute monster on the streets. From aggressive cold starts to ear-piercing revs, this tuned RS6 delivers raw power and brutal sound ...