Why does my Audi 80 shake when I reach high speeds?

I recently noticed that my Audi 80 starts to shake and vibrate when I reach high speeds on the highway. What could be causing this issue and how can I fix it?

It is possible that your tires are out of balance, causing the shaking sensation at high speeds. I would recommend getting them checked and possibly rotated or balanced.

Another possible cause could be worn out or damaged suspension components. I would suggest having a mechanic inspect the suspension system for any issues.