The term 'Harness Racing Vehicle' is a type of horse-drawn vehicle used in harness racing. The most common type of vehicle used in this sport is the SULKY, which is a lightweight two-wheeled cart that is pulled by a single horse. The SULKY is designed to be lightweight and aerodynamic, allowing the horse to move quickly and efficiently. The driver of the SULKY sits in a seat behind the horse and guides the horse with reins. Harness racing vehicles are also equipped with a variety of safety features, such as brakes and shock absorbers, to ensure the safety of both the horse and the driver.