Proving innovation in Detroit isn't dead, a team of General Motors engineers 'optimize absolutely everything' and achieve a new world record.

Driving at low speeds with no air conditioning may not be ideal for most drivers, but the test showed just how far current EV batteries can be pushed in optimal conditions.

The Silverado EV managed to more than double its EPA-rated range thanks to meticulous planning, good weather, and a host of hypermiling tricks.