In 2028, the BMW iX5 Hydrogen, based on the upcoming G65-generation X5, will roll into showrooms. Lessons from the Pilot FleetBMW’s pilot fleet of iX5 Hydrogen test cars was deployed across 20 countries and clocked more than one million kilometers. “The iX5 will be available with five drivetrains: combustion engine, diesel, plug-in hybrid, battery electric, and hydrogen fuel cell,” he explained. The 2028 iX5 will debut a third-generation fuel cell system that Rath described as a major leap. “The first iX5 Hydrogen was roughly in the same range of weight as the plug-in hybrid.