The sport truck movement was one of the biggest car culture hallmarks of the 1990s. From factory hot rods like the Chevy 454 SS, Ford Lightning, and GMC Syclone to countless custom builds by enthusiasts across America, the concept of high-performance pickup trucks spread like wildfire. These builds featured more powerful engines, lowered suspensions, custom paint, and sleek, aggressive styling. One of the pioneers of the sport truck movement was California-based hot rod builder Boyd Coddington. In the following video from Jay Leno's Garage, Leno and Coddington's son Chris take a closer look at the 1989 GMC that's credited with starting it all.