Why is the steering wheel of my Audi A4 vibrating at high speeds?

I recently noticed that my Audi A4's steering wheel starts to vibrate when I reach speeds over 50 mph. It's quite unsettling and I'm not sure what could be causing it. Is this normal or is there something wrong with my car's steering system?

Vibrations from the steering wheel at high speeds can be caused by several different factors, such as unbalanced tires, worn out wheel bearings, or even a worn steering rack. It's best to have a mechanic take a look and diagnose the issue.