I completely agree with you, most twin turbo 6 cylinders can't hold a candle to the single turbo cars in the sound department. the engine in the AMG C43 and the new s58 being anamolies to the rule.
It does sound thunderous. The m140i is a real beast that no one sees coming because of it's size. It is a real monster with a tune and some work done to it! The b58 revs so quickly it is absolutely instant compared to my N55!
