Why do I feel a vibration when driving my Audi A4?

I have recently noticed a vibration throughout my Audi A4 when driving at high speeds. It seems to be coming from the front of the car. What could be causing this and how can I fix it?

It is possible that your wheels are out of balance or your tires are worn unevenly. This can cause a vibration when driving at high speeds. You should have your tires rotated and balanced, and if necessary, get new tires.