A hydrogen combustion engine car is a vehicle that burns hydrogen gas directly in a modified internal combustion engine, similar to how petrol engines work. Unlike fully electric vehicles (EVs) or hydrogen fuel cell cars, its tailpipe emissions are primarily water vapor, but it also produces nitrogen oxides (NOx) due to high combustion temperatures, meaning it is not completely zero-emission. For the UAE market, the practical application is currently minimal, with no mainstream GCC-spec models available for purchase. The technology faces significant hurdles here, primarily the complete lack of public hydrogen refueling infrastructure and the high cost of producing 'green' hydrogen locally. For a UAE car owner, the Total Cost of Ownership (TCO) would be prohibitive today. Based on international studies adapted for UAE conditions, the estimated fuel cost per km for hydrogen could be 2-3 times higher than for a comparable petrol SUV running on Special 95, when factoring in production and distribution. Annual depreciation would be exceptionally high due to the experimental nature of the vehicle in this region. According to the UAE Ministry of Energy and Infrastructure (MoEI), hydrogen is a strategic fuel for the future, but current national strategies focus on industry and export, not retail mobility. RTA Dubai's current regulatory framework and testing for new vehicles does not yet include provisions for consumer-owned hydrogen combustion cars, highlighting the technology's early stage.
