I test drove a Focus ST today. Great ride, but the whistling sound which reminds me of a vacuum cleaner started bugging me a lot. It appears even when pressing the gas lightly and in low revs, regular driving that is. Is that a "feature", or was it some kind of a fault in that particular car I drove? My guess is, it's not a fault, but probably the turbo, but then I must say it is exceptionally loud (not that I've driven many turbos, but I don't think even the old Saab 900 turbo was that loud). What do you guys say? Should I go check my ears? :wink: