This ONLY happens in the first three feet of driving, each time the car is started. It never happens during driving.

When I put the car into drive and idle forward, regardless of whether I'm turning or straight-on, an audible "BRRR" or "GRRRUNT" emanates from the front of the car. I am pretty sure I can "feel" something at the same time.

Like I said, this does not happen during any other driving situation. No turning, no accelerating, no nothing while these are happening.

Any one have any notions?