At CES 2024 in Las Vegas, amidst the focus on electric vehicles for carbon-neutral technology, hydrogen energy has made a resurgence thanks to Hyundai and Bosch. Hyundai showcased its plans to utilize hydrogen energy not only for vehicles but also for energy production, storage, and transportation, envisioning a 'hydrogen society' in the future. Bosch Mobility announced its upcoming launch of a hydrogen combustion engine as a significant step towards decreasing global carbon emissions. Both companies expressed confidence in the feasibility and economic viability of hydrogen energy initiatives. Additionally, Honda unveiled its Zero Series concept vehicles with a focus on slim, lightweight design to minimize battery size and weight. Kia introduced electric vans with modular design capabilities, while VinFast presented an electric truck concept. In-car technology advancements were also highlighted, with Mercedes-Benz showcasing updates to its infotainment systems and a new AI-powered virtual assistant. Google announced partnerships with various automakers to pre-install Google apps in vehicles. Furthermore, Honda discussed its plans for developing solid-state batteries by the late 2020s, aiming to enhance the energy density, range, and power output of electric vehicles. The collaboration between Toyota and Idemitsu on solid-state battery technology was also mentioned, indicating the industry's shift towards more stable and powerful battery solutions.