Why did he decide to make the tucker

Preston Tucker is a heartland dreamer who wants to build a better mousetrap. When the film opens, we watch a newsreel about his innovative military vehicle for World War II that was ultimately rejected by the military. Nevertheless, the war's over now, and Tucker wants to build an innovative automobile with forward-thinking mechanical and safety features that seem bold and flashy in the 1940s but will soon become standard in all automobiles.