What is the cause of the Audi 80's tendency to oversteer when cornering?

I've noticed that my Audi 80 has a tendency to oversteer when I'm taking corners, especially at higher speeds. I've tried adjusting my driving but it still happens. What could be causing this and how can I prevent it?

The main cause of oversteer in the Audi 80 is the rear suspension setup. It's designed for a sportier and more rigid drive, which can make the car more prone to oversteer in certain driving conditions.