On the surface, hydrogen combustion engines seem like the ultimate solution for car guys. You still get a wonderful four-stroke piston-cylinder combustion engine, with the sound and feel you've come to love, but all without any carbon emissions. Since hydrogen fuel (H2) doesn't have carbon in it (like gasoline or diesel fuel), there's no carbon added to the byproducts of combustion in a hydrogen engine. It's just as good as it sounds, but unfortunately there's a much more logical alternative that makes hydrogen engines seem quite silly. Check out the video for all the details!