After 2040, the goals are even more ambitious. That range figure will be pushed even further to 776 miles, while the size, weight and cost will be even smaller.
If they are able to produce cars with 1248 km / 776 miles of range at a similar cost, I would strongly suggest to rather build cars with a smaller battery at a lower cost, lower weight and a better usable room per size ratio.
I would say that range is already now no longer an issue of modern EVs. I drive a Hyundai Ioniq 6 which is pretty efficient. I have a range of 550 km / 341 miles at 100% and it charges in less than 20 minutes to 80%. Compared to combustion engine vehicles there is no additional waiting time on long distance journeys. If I go to the toilet, grab a snack or walk a few steps to move my muscles, I already have to hurry to be back in time and not to block a charger unnecessarily.
Who the heck needs 776 miles of range? If that would be a common use case, why are there (almost) no combustion engine cars with such a range? You could also easily double the tank size of a petrol car. Yet, no one asked for that.
Range is no longer an issue IMO. Fast charging is fast enough. Now, we have to make EVs more affordable, lighter and smaller and improve the footprint of battery production in terms of rare materials, recycability, pollution etc.