There’s hope on the horizon yet! BMW ZF supplier aims to convert diesel engines into hydrogen-fuelled powerplants. One thing reading this piece I didn’t know is just how big the tank would have to be to hold 4kg of hydrogen, It said it would need to be100 litres!!! Which would be an awkward size tank to fit intro something like a smallish sized hatch batch. todaynewspost.com/auto-news/bmw … werplants/