2007 Nissan Xterra with optional side airbags 31 mph side IIHS crash test Overall evaluation: Good Full rating at \rbr\rbr2007 Nissan Xterra without optional side airbags 31 mph side IIHS crash test Overall evaluation: Marginal Full rating at .\rbr\rbrNissan Xterra 2005-08 models SIDE IMPACT TEST WITHOUT OPTIONAL SIDE AIRBAGS OVERALL EVALUATION: Marginal Injury measures Head protection .