In this paper, hybrid electric vehicle (HEV) that powered by hydrogen (H-2) enriched internal combustion (ICE) engine was studied both simulation and experimental. As an alternative fuel, the usage of H-2 as additional fuel on an ICE that used for HEV, investigated in this partially simulational study for the first time. The study was consisted two parts. In the first part, the effects of 10% H-2 enrichment on performance and emissions were experimented in a 1.8 L Ford Spark Ignition (SI) engine. Then, AVL Boost tool was used for simulation and validation under this ICE's properties and has compared with experimental results. After the simulations and experiments results were found consistent each other, AVL Cruise was used for hybridization of H-2 enriched ICE, for the second part. Combustion, performance and emission values are given comparatively with selected driving cycle of model vehicle were realized with simulation tools. Hybrid mode's ICE becomes more environmentally friendly due to H-2 enrichment with increasing performance. The model HEV has delivered promising results on performance and emission values and this improvement added to literature with this study. Results showed that, enrichment of H-2 is presented 3.56% improvement in ICE torque and 2.37% for ICE power. Cumulative fuel consumption and emission pollution decreased by 12.6% and 14-33% respectively, for hybrid mode. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.