ARLINGTON, VA — The Chevrolet Silverado 1500, Dodge Ram 1500, and Nissan Titan are billed as workhorses, but the side crash protection these 2009 model large pickups provide is wimpy, at best. The trio earns either poor or marginal ratings in side tests by the Insurance Institute for Highway Safety. Even with side airbags, occupant protection in these crew-cab pickups is no better than marginal. "The size, weight, and height of these large pickups should help them ace the side tests just like the other large pickups we’ve tested. Not these three," says Institute senior vice president David Zuby. "They perform worse than many cars we've evaluated." The Dodge Ram with standard side airbags earns a marginal rating. The Nissan Titan and Chevrolet Silverado earn poor ratings when tested without their optional side airbags. The Titan's side rating improves to marginal in models tested with side airbags, while the Silverado's optional side airbags don't improve the rating over models without them. The Silverado's ratings also apply to its twin, the GMC Sierra 1500, both of which were redesigned in 2007, so the ratings apply to 2007-09 models. The Ram is a new design for the 2009 model year. The Titan was introduced in the 2004 model year, so results apply to 2004-09 models. The Institute's side tests assess occupant protection in vehicles struck in the side by SUVs or pickups. Results can be compared across vehicle type and weight categories, while frontal crash test ratings can't. This is because the kinetic energy involved in the side test depends on the weight and speed of the moving barrier, which are the same in every test. In contrast, the kinetic energy involved in the frontal crash test against an immovable barrier depends on the test vehicle's speed and weight. The Ram, Titan, and Silverado should have an advantage in side crash tests over smaller vehicles, not just because of their size and weight but also because the dummies' hig...