In 2002 the biofidelity of the SID-HIII, ES-2 and prototype WorldSID side impact dummies were compared using a new Biofidelity Ranking System (BRS or BioRank) [Rhule, 2002]. The current study introduces updates made to the BRS and assesses the biofidelity of the ES-2re and the latest WorldSID side impact dummies. Approximately twelve drop tests, ninety pendulum tests and forty sled tests with a dualoccupant buck were performed with the ES-2re and WorldSID dummies, including lateral and oblique shoulder impactor tests [Bolte, 2003]; lateral and oblique thorax impactor tests [Shaw, 2006]; five Maltese sled tests [Maltese, 2002]; and several drop, pendulum and sled tests from ISO 9790 [ISO, 1999]. Test condition weight factors used previously have been eliminated in the updated BRS, giving all test conditions equal value. A scale for quality of the biofidelity ranking value, B, is demonstrated by comparing individual human subject responses to response targets and generating individual cadaver B values for both External and Internal Biofidelity. Having a scale of B values for the subject responses used to create the target response will give the user a metric for understanding the quality of a dummy’s biofidelity. Finally, the sensitivity of the biofidelity ranking value, B, is illustrated using data from repeated tests on multiple WorldSID dummies. The sensitivity analysis will help the user understand if the biofidelity of two (or more) dummies is similar or different. This recent data and updated BRS show that the WorldSID dummy exhibits improved overall biofidelity over the ES-2re. Results of the updated BRS show that the WorldSID and ES-2re demonstrated Internal Biofidelity values of 1.2 and 1.7, respectively; the WorldSID demonstrated an External Biofidelity score of 2.2 while the ES-2re demonstrated an External Biofidelity score of 2.8.