NASCAR teams are organizations that field cars in NASCAR races, competing in various series like the NASCAR Cup Series. Each team typically consists of a driver, crew chief, and a group of mechanics and support staff who work together to prepare and maintain the race cars. Teams are often sponsored by companies, which helps fund their operations and promote their brands. These teams can vary in size and resources, with some being large, well-funded operations and others being smaller, independent teams. Successful teams often have a strong history of performance and may have multiple cars competing in different races, allowing them to gather valuable data and improve their strategies.