That was a rig shot with remote control shutter release and two exposures. One exposure with hood open and another will hood closed. The car moved slowly during 1.6 second exposures to show motion. I edited the exposures in PS CC by stacking the hood closed image on top of the hood open image. Then I used a brush tool to paint black over the top image to expose the bottom image. Super easy.
My editing skills needs work, practice makes perfect!