@BobbyD posted:Wasn't sure if they were still aluminum or now plastic molded. The extrusion would seem to be way more flexible tooling than a mold.
They are still aluminum. Extruded aluminum is more flexible in allowing smaller runs of cars and windows are cut by CNC now so there is not tooling for a window punch. While tooling costs are lower, labor costs are higher to assemble the cars as there are more parts.