Billetproof held a show at HooptieCon CA 2018, a gathering of oddball and fun automotive events. 24Hours of Lemons, Concours d'Lemons, Gambler 500, Radwood and Billetproof all in one place at one time. Car show participants got to take some laps around Sonoma Raceway in their Hoopties. Here is some video from the laps. Pics and more to come.