What is the cause of the engine misfire issue in Audi 80?

I'm experiencing random engine misfires in my Audi 80 and I'm wondering what could be the root cause of this problem. The issue seems to occur more frequently at high speeds and while accelerating. Any insights or recommendations would be greatly appreciated.

Based on my experience, the most common cause of engine misfires in Audi 80 is faulty spark plugs or ignition coils. I would recommend checking and replacing these components first before moving on to other possible causes.