There is a slight vibration/resonance at around 800 rpm, it is only noticeable when I accelerate very slowly, i can feel it through the steering wheel. It is there even when it is in Park or Neutral so I assume it is probably an exhaust drone. Is this normal?

 

The drone, or accelerating slowly??

 

I meant accelerate slowly say during congested traffic. Does anyone have this exhaust drone issue?