620 miles = 1000 km, I guess that’s how that came about.I don't know US law, but in the UK we have some benefits in this. Obviously if the car is delivered to me with serious defects i can refuse to accept it straight away. In addition UK law gives us rights under Distance Selling law, and Polestar contract gives us the right to reject within 14 days and 620 (?) miles.
It is a leap of faith i agree, but sadly the Tesla/Polestar car sales model is going to become more prevalent now as other 'mainstream' car manufacturers adopt it.