I wonder if poor pre-delivery handling of the car (to you) contributed to the motor failure? Sometimes towing and transporting an EV, especially if the car's driveline is not placed into neutral before its pulled up and onto a transporter or flatbed can wreak havoc on the drive system / dif / and/or motor. (Especially onto rail cars and or large transport rigs.) (Sometimes cars are driven onto transporters, but not always.)