It's not a function of time but rather progress. Since there has been significant progress (mostly ignored by the tech community), the commonly used arguments a

It's not a function of time but rather progress. Since there has been significant progress (mostly ignored by the tech community), the commonly used arguments against hydrogen are now wrong. They haven't announced those numbers yet. We know BMW is building an X5 with 368hp using Toyota's fuel cell stack: https://www.topgear.com/car-news/electric/bmws-hydrogen-x5-will-produce-368bhp https://www.topgear.com/car-news/electric/bmws-hydrogen-x5-w... So we should be reasonably sure the new Mirai is going to be much faster than the first. It's also going to have around 400 miles of range and will be much bigger and more luxurious. We haven't heard about pricing yet, but from a production standpoint Toyota has talked extensively about how much cheaper it is to make.