What makes a stunt so hard to pull off?

Genesis and Drivers Inc.’s Tanner Foust take on that question in the new digital series, “The Art of the Stunt.” In the first episode, Foust starts things off with a jaw-dropper, spinning a backwards-driven G70 underneath the trailer of a semi truck.

In an Instagram post, Tanner explains just how difficult and dangerous the stunt was to pull off.