MY BRAND NEW M3!

My 1995 BMW M3 had been maiking a strange rattling sound that I thought was the VANOS system beginning to fail. The car also began hestitating at times, which gave me pause. I told my friend Adam (The Wolf) about it. He went for a test drive and didn't at first see an issue. The inline 6 cylinder engine seemed to be working as advertised. we continued driving and suddenly the hestitation reappeared. We stopped and opened the hood to take a look. The Wolf made a video recording of the engine running. After some internet resaerch, he found out that the problem was likely loose spark plugs. He was right. Yesterday, we changed the spark plugs and discovered that two plugs were loose, one spark plug had no ground electrode at all! this means that at least one cylinder has not been firing.