the center electrode, was below the ceramics. that's how worn they were.

I know how these are supposed to look, but they were very low.
unfortunately i did not take any pics.

But a change of plugs has really changed the way the motor responds.
Much quicker pickup of revs, and more bottom torque.
I do believe that when i change the fuel filter, it will again be almost as fresh as new.

This is just incredible, the car has a full service book. Always performed at BMW but even the oil filter was the original from new. date stamp was the same as production month. I could litterally see through the filter. Big holes everywhere.