> ”I can see a hybrid vehicle with both batteries and fuel cells as a future option” All fuel cell vehicles already have batteries, of course. But if you mean

> ”I can see a hybrid vehicle with both batteries and fuel cells as a future option” All fuel cell vehicles already have batteries, of course. But if you mean plug-in fuel cell hybrids, I don’t think that will happen. Manufacturers of fuel cell vehicles need to create demand for hydrogen in order for hydrogen filling networks to expand, in turn stimulating demand for more hydrogen cars. But if you put a plug on the car, owners will prefer to use the batteries for their daily driving, only using expensive hydrogen occasionally as a backup or for long-distance driving. This would greatly reduce the demand for hydrogen, so filling networks would struggle to be viable. Also, from an engineering perspective, if you’ve gone to the trouble to add a plug and charging equipment, you already have an EV. Why then add expensive, complex fuel cells, bulky hydrogen tanks, huge air filters and all the rest of it? It’s just going to be easier and cheaper to use a bigger battery!