I ride a class-3 Tern cargo bike with 400Wh battery and this range is very optimistic, especially since this is pedal-by-wire. Also what happens when the battery runs out, because you can just ride without assist on any Bosch e-bike.
go to spz.penize.cz and lookup license plate 001CYBER, legally registered in Czechia
go to ufg.pl and lookup the insurance policy for license plate S1K6, legally registered in Poland
both countries are EU members and you can drive those cars anywhere in the EU