The "cant rail" in question here is the exterior cladding of the A pillar and along the panoramic roof, adjacent to the windshield. Noting that sharp-edged, ro

The "cant rail" in question here is the exterior cladding of the A pillar and along the panoramic roof, adjacent to the windshield. Noting that sharp-edged, robust stainless steel trim pieces falling of cars can be a pretty significant safety risk to the traffic around the affected car.