Jack DePost

Jack DePost is a professional race car and a competitor in the Piston Cup Racing Series. He races for the Tow Cap team, superseding Rusty Cornfuel. His racing number is 4.

History
In Cars 3, Jack competes in the 2016 Piston Cup season, against the likes of Lightning McQueen, Jackson Storm, and many others. Later on during the season, Tow Cap fires Jack and replaces him with a next generation racer named J.D. McPillar.