Two-thirds of pickups, vans and sport-utility vehicles don't provide acceptable protection against whiplash in rear-end collisions, according to tests by the Insurance Institute for Highway Safety (IIHS). Some 54 models were rated "marginal" or "poor" by the Institute in tests that involved measurements of seats and head restraints and, in some cases, simulated rear-end collisions.
Read More About Most Trucks & SUVs Perform Poorly in Whiplash Tests...