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CONCORD, N.C. _ In the strange new lexicon of life-saving innovations for NASCAR drivers, the HANS device may soon be joined by the Humpy Bumper.
Silly as the name sounds, the graphite-fiber bumper unveiled here Wednesday promises to "absorb a minimum of 50 Gs" from frontal crashes against concrete walls, according to its designer.
That sort of energy management could easily have NASCAR drivers walking away again from the type impacts that have killed seven-time Winston Cup champion Dale Earnhardt and four other NASCAR drivers in the past year. Earnhardt's crash was estimated by engineers at a maximum of about 60 G.
Las Vegas-based composite …