Is it illegal to print car brands on leaflets?

See if it's authorized. Printing automobile brands on leaflets without authorization is a violation of trademark law and may face legal responsibility. The specific situation needs to be explained by consulting a lawyer. In order to avoid unnecessary troubles, we should abide by the relevant local laws and regulations and review the pictures, icons and words used in the leaflets to ensure that there will be no copyright disputes over automobile brands and trademarks.