There are a few key differences between Coney Island hot dog sauce and chili. For one, coney sauce is typically made with ground beef, while chili is usually made with diced or stewed meat. Additionally, Coney Island hot dog sauce typically has a sweeter flavor due to the addition of sugar or molasses, while chili is typically spicier due to the addition of chili peppers. Finally, coney sauce is typically thinner than chili, while chili is usually thicker due to the addition of beans or other thickening agents.