i think i know now why there is the spikes

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https://www.popularmechanics.com/car.../a257/1347221/

The bend in the cutoff should be slightly to the right of the center of the lane, for the same purpose. This will illuminate the road surface in front of the car, as well as the curb area to the right.
so which means bet the cutoff & bend is the center of the headlight.