Hyundai's N Vision 74, a retro-futuristic hydrogen fuel-cell sports car capable of 670 horsepower and a blistering 0-100 km/h time of around three seconds, represents more than just an engineering curiosity. It's a potential watershed moment seeking to prove that hydrogen power isn't just clean, it can be exhilarating. The timing couldn't be more critical. As the automotive world pivots away from internal combustion engines, battery electric vehicles have seized the imaginati