I have a 2006 Volvo S60 2.5T. I love how the motor is turbocharged, you can hear it pretty well when you first start up the motor and it goes to high idle. How come I dont ever hear the turbo whine when I am driving and accelerating. I dont mean the waste gate sound with the loud burst of air, just the classic turbo whine. Its an automatic tranny too if that counts for anything. Just curious on the answer.