Are you actually asking the right question?
If you have a charging point at home then you should expect the vehicle to be charged ready for leaving home each day. Thus a much lower range will suffice.
How far do you drive without a break? Is it really over 400 miles?
How often do you make such long journeys anyway?
Yes an Electric vehicle does take longer to charge than a diesel or petrol vehicle takes to fill-up, but you don’t stand next to it the whole time. In fact you could be having a coffee or lunch and it’s app will let you know when it’s charged.
In conclusion, consider what range you really need if you’re ready charged from home every day.
Diesel Engine vs. EV: Which is better? Interesting Engineering – June 2020