Since 1994. The Rocklin Chamber’s Hot Chili and Cool Cars event is an annual favorite for residents, visitors, classic car enthusiasts and chili aficionados. Free to attend, the annual event features the area’s coolest cars and fiercest chili cooks, all competing for bragging rights in the Classic Car show and Chili Cook-off. Downtown Rocklin is transformed, encompassing nearly 5 city blocks. Such efforts would not be possible without our generous title sponsors, Five Star Auto Center and RC Willey.