"Make it bigger" doesn't really work in cars, otherwise range anxiety wouldn't exist as a concept.
The record still makes sense because the Hyundai Nexo is commercially available and it's not a prototype with a comically-large just for the record tank.
https://en.m.wikipedia.org/wiki/Atlas-Centaur
I don’t know what you’d consider the max range here to be, but it’s definitely better than 887km.
Tank capacity only helps so much. You may have to fill up half as often, but having to go out of your way for a special station is annoying. ICE vehicles could easily have 40 gallon tanks, and eventually FCVs won't have these incredibly high ranges.
I went back from a Tesla to a diesel car. I hate going out of my way to special stations to fill up my car with diesel. I much preferred unplugging in the morning and plugging back in in the evening.
My first vehicle had a 33 gallon tank. Not much room for anything bigger; of course mileage was awful. My most efficient car can do about 600 miles on a 14 gallon tank; if it had room for a 33 gallon tank, it could go halfway across the country on one tank.
Sure it does. Just look at Tesla, at the time EVs had 24kwh or smaller batteries and they more than doubled that to give reasonable ranges.
At some point you’ll have more drawbacks than it’s worth it (size, price, weight, efficiency, safety).