Steel wants its bumpers back: High strength steel lays claim to GM 'H' body rear bumper in a costcutting Shootout.

摘要

It may be just one skirmish in the automotive war on costs, but it's an interesting one nonetheless, This is a case where a running change has just been made to the rear bumpers of GM's Bonneville, LeSabre, DeVille, and Park Avenue models substituting a roll formed ultra high strength steel reinforcement beam for an aluminum extrusion. The changeover date was February 6, but the exploratory talk started just one year ago between GM and the Cosma International Division of Magna.