Why does my Audi A4 vibrate when I accelerate at high speeds?

I have noticed that when I am driving at high speeds on the highway, my Audi A4 starts to vibrate. It can be felt through the steering wheel and the foot pedals. Is this a common issue and how can I fix it?

This could be a sign of worn out or unbalanced tires. It is important to check the tread and air pressure regularly, as well as getting a tire rotation every 6,000-8,000 miles. If the issue persists, have a mechanic check the wheels and alignment.