Was noodling thoughts about the magnets.
The equivalent tensile holding power should approach what the common fasteners would have had.Say,that of 3,grade-8,10mm bolts,up into the cast-in-place riv-nuts on the spoiler's underside.
You'd have no protection against shearing forces though.If the foil had any resonance,she could try and walk right off the back of the car.(Frank Lee's 18-wheeler bow and stern blast).
You could have a lanyard on it like the Dodge Daytona Charger,so it couldn't get away from you.
Seems like the liability would outweigh the convenience of no body penetrations.
It scares me just thinking about it.I myself would chicken out.
