Origin of the term "souped up"

Ah yeah. You're correct
Yep Jalopy Junk. Ford wanted them to cheap out on parts, as they were suppliers, they said No, and cashed out on ol Henry for millions ( 1919 or 20s , 25 mill maybe) caint remember... that's were the FU came in! Lol and the Real Deal of rides was born for cars and trucks!