Dr. James Friend, senior lecturer in the Department of Mechanical Engineering at Monash University in Australia, is developing a nanobot propelled by a tiny rotor motor measuring about five-millionths of a meter.

CNN: Nanobots get to the heart of the matter

Putting more than half a million road miles on development versions of the Spark EV enabled engineers to make the performance of the electric motor the best it could be by using a bar wound copper stator and unique rotor configuration.

ENGADGET: Chevy Spark EV rated most efficient retail car with 82-mile range, 119 MPGe