Simple question from a Volvo n00b...having driven some other turbo'd vehicles, I was quite puzzled when i couldn't hear the turbo spool in this car. It's got that flat torqueband I would expect, so I'm sure the turbo's putting out boost, but is it it normal not to hear the turbo in this car?

 

Hey now, I know someone here knows whether it's normal to not hear the turbocharger in these things...