In writing the lyric, LaBrie was inspired by some other famous songs about vehicles, notably "Red Barchetta
" by Rush and "Highway Star
" by Deep Purple. "'Viper King' has a little bit of those overtones and a very Van Halen kind of feel, as well," he told Songfacts. "I just wanted to write about the thrill of driving down the road and letting your spirit free, enjoying the ride."