My insurance company trucked my X5 over to the dealer today, to get a formal estimate of repairs. I was there inquiring about "things" and asked about the airbag issue. One of the front sensors, the one on the left side where the impact occurred, was found laying in the general area of the engine compartment, with it the wiring sheared, with the speculation that perhaps the impact cut the wire to the sensor, along with a significant number of other wiring components. Anyway, just speculation. I am glad the airbags did not go off.

So far, the unofficial estimate for repairs is $47K and some change, and still some more counting to go. Insurance requires 75% of value to total vehicle.

Will update more as I find out.