The car makes a wobble sound as we accelerate and slow. Feels smooth though.

What is your question?

The sound sound like when a back window is open and it's that wobble vibration sound. We have new tired and alignment. Shocks and struts checked. What could it be? We bought it used but with a 3 yr warranty. I'm just worried it's the turbo or something. Otherwise it drives amazing accept for that sound.