Autocar heavy trucks have several competitors in the market. Some of the main competitors of Autocar include Peterbilt, Kenworth, Mack Trucks, Western Star Trucks, and International. These brands are also known for producing heavy-duty trucks that can handle a variety of applications. Each brand has its own unique features and benefits, and customers may choose one over the other based on their individual preferences and needs. Ultimately, the choice of truck brand and model will depend on factors such as price, performance, reliability, and customization options.