The purpose of this study was to identify side impact crashworthiness trends since the enhanced NCAP rating system was implemented for 2011 and later model year vehicles. Publically available test results from NHTSA’s crashworthiness database for 2011 to 2016 model year vehicles were collected. This study used new vehicle tests only. No carry over performance data was used. Commercial statistics software was used to observe vehicle crashworthiness performance, injury metrics, restraint, and vehicle deformation trends. Mean side impact relative risk score improved from 2011 to 2015, with the largest improvement occurring from 2012 and 2013. Both the driver and rear occupant demonstrated reduced injury metrics over the years examined, with the largest reductions from 2012 to 2013. During this same time period, the use of torso-abdomen-pelvis side airbags increased by 13.5 percent. Additionally, B-pillar deformation was reduced by 55 mm over the study period with the largest reduction occurring from 2012 to 2013. Though causative mechanisms for injury metric reductions could not be determined, this study documented the changes observed in crashworthiness performance, restraint system, and vehicle deformation.