Hello, do you remember in 2001 BMW did a world tour (in Dubai, Brussels, Milan, Tokyo, Los Angeles and Berlin) with 10 BMW E38 models named BMW 750hL?
Under the hood those E38 had a V12 and it worked on both hydrogen and petrol. On hydrogen that E38 could drive 350km and its hydrogen tank is for 140 litres.
Recently I saw a video with James May driving a Toyota Mirai which is a hydrogen fuell cell electric vehicle so I asked myself why BMW is not doing smth similar. I guess since 2001 they could have developed and improved this technology to another level.
Btw, It takes around 3-5 min to fill it up and continue driving 🙂