I bet you some of the 70's and early 80's corvettes with the iron powder coating would slip right past, not that you can purchase it.

I used to work for BASF who makes the coating and they only sell to government approved manufactures.
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Praise the Lowered
67' Camaro - Worked 327, Hotchkis TVS suspension, 4 wheel cross drilled discs, AM radio FTL
05' Silverado - Stock, stock, and stock.