Alpine is previewing the way forward for its race and street automobiles with the Alpenglow Hy4 prototype. The Hy4 is a operating prototype powered by a 2.0-liter turbocharged inline-four making 340 horsepower — utilizing hydrogen. The engine revs to 7,000 RPM, drawing gasoline from three tanks, every carrying 4.6 kilos of hydrogen at over 10,000 psi. The numbers aren’t spectacular for a race automotive, however Alpine has plans for a hydrogen V6 designed utterly in-house, scheduled for a late 2024 debut.