Vibration at high speeds and noise at full throttle?

Hello,

I have a little of a weird issue at around 80 MPH my car starts to vibrate. I would almost say it gets less intense when I give it more throttle and when I do full throttle at highways speeds it seems to shudder/ vibrate with accompanied noise of what almost sounds like metal pressing against rubber and causing air to escape from it. My first thought is motor mounts but there is no/little vibration at idle or at normal speeds. I would appreciate your opinion.