The prongs and tip look normal. The burn through looks rough though. When ceramic looks that burned, plugs have been in for a long time. Or they were starting to fail badly. I swapped the OEM ones for single prong types too. After 1-2 tanks, the cluster adjusted to over a 510+ mile road range! It was the first time seeing it. Before the plug change, the range stayed below 450. Post back how you like the new plugs. Mine had new coils put on at the same time.

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'06 X5 3.0i - bought @143,123 miles (12/26/20)