Haha, you will notice many more sounds and vibrations as you get accustomed to the car.
As for your little whirring sound, its probably the timeing belt. People have asked me if my car is supercharged because of that sound.
I know this doesn't help you much. As for the sound... I wouldn't worry about it unless the vibration is followed by a drastic drop in rpm's or any nocking or pinging.
This car requires a little more maintnence than some others in its class, but if you treat it right you will not be dissapointed with its performance. My SVT and I have had our differences in the past but when it comes down to it, no other car can provide the same ammount of performance for the same price.
