A drive is the digital camera that harnesses and handles the electrical energy sent to the electric motor. The drive feeds electricity into the motor in varying amounts and at different frequencies, thereby indirectly controlling the motor’s swiftness and Electric Drive Motor torque.
So the most economical choice would be a Three Phase Induction motor accompanied by a BLDC 
engine. I would suggest BLDC ( for its huge marketplace penetration in recent times,ease of availability and easier consumer electronics/control ) or PMSM (Permanent magnet synchronous motors )