1) how much gold had been used as this car is so high price ?
2) this car has been made the rear seat over the back wheels so during movement much more electric field are inside the passenger's body. So it is not a healthy car.
3) ground clearance is too short as tire level. So passenger may feel certain motion sickness. Very uncomfortable.
4) electric charger is not available because you made it a special charger. So everytime to charge it may be needed charging station which is very much unavailable at anywhere.