The 400 km in 5 minutes figure relies on finding a charger that can consistently deliver 1 MW; a prominent UK YouTuber just reported being unable to find a public charger that can consistently exceed 100 kW in all the years he's been testing electric cars.

As much as I think that electric cars are the future - and my next car will be one - there's a lot of infrastructure that needs to be put in place and improved before they can reach their advertised potential, just as there was for petroleum-powered cars.

I can't speak for the UK, but with my Model 3 2019 I was charging <10% to 30% @ 250kW (max the car supports) for a good 5+m in Switzerland and Italy already 4 years ago (both at Tesla Superchargers V3 and Ionity 350kW public chargers).

Of course the charger is not the only limiting factor, the grid also needs to support it. If you're in a small town with no big shops/industry, you're way less likely to have 1+MW cables installed, there was never a need for such peak capacity before.

I don’t doubt that’s true in the UK and Europe but this is a Chinese company at a Chinese car expo so I’d imagine that these chargers are popping up all over China.

Maybe one day the rest of the world will catch up?

For now, most of the 1-MW chargers are located in China, where they have been installed during the last half of year or so.

Therefore there is no wonder that none could be found in UK.

Because BYD and other companies have announced plans to sell such cars in the EU, I assume that they will also promote the installation of such chargers wherever they export their cars.

But I would expect that some years will pass until such chargers could become available everywhere.

That 100kW claim seems pretty unlikely, or maybe it's UK only? Driving long distance in Europe I see the max ~230kW charging of the car everywhere apart from the rare times the charger's broken.

Actually, although UK provision is pretty bad, I got 235kW sustained last week in some small charging station off the M4.

The word "consistently" is doing a lot of heavy lifting here, and most of the limiting will be on the car side for average cars and average chargers.

e.g. a Hyundai Ioniq 5 might charge at above 200kW up to around 45% peaking around 260kW on a 300kW charger then taper down to about 50kW at 80% full.

But that's a relatively good car for charging, many others won't push the older, lower spec chargers that are only advertising 100-150kW to their max (which might actually be from a low of 90 to a high of 175 on the charger side).

Some chargers display whether the car or the charger is limiting the rate as people often inaccurately blame the charger.

This new BYD car, on a standard high speed charger is likely to flatline the existing 350kW chargers up to near 80% in a similar way to how the Ioniq does that on older 150kW chargers.