By 2050, 21% of world population is expected to be older than 60 years. This age shift poses a serious challenge to the protection of car occupants, as fragility and frailty are associated to increasing age. Advanced restraint systems that aim to reduce chest loading by implementing load limiters or inflatable parts have been introduced in the market over the last years. This paper investigates the kinematics and dynamics of two surrogates (THOR dummy, Post Mortem Human Surrogates or PMHS) in 35 km/h impacts under the action of two different restraints: a pretensioning, force-limiting seat belt (PT+FL) and a concept design consisting of two separate shoulder and lap belt bands (split buckle system or SB). Three repeats per condition where done with the THOR dummy, while only one PMHS was tested per restraint system. With respect to the PT+FL, the results from the THOR tests showed that the SB seat belt decreased chest deflection significantly without a substantial increase of the forward displacement of the head. The PT+FL belt allowed the pelvis of the PMHS to move forward preventing the rotation of the torso and therefore reducing the forward excursion of the head. The PMHS test with the SB resulted in improved kinematics compared with the PT+FL. A complete understanding of the kinematics and dynamics induced by these restraints would require additional PMHS tests.