The series is mainly populated by wealthy gentleman drivers, although efforts have been made to attract more young drivers who want experience with Formula 1 or Formula 2-level machinery. BOSS GP removes a lot of the restrictions present in the majority of Formula series, allowing weight and power restrictions to be abandoned as long as they comply to the FIA safety requirements. The series uses Pirelli tyres that have a larger operating window than those in F1 and F2; this is mainly designed to help the gentleman drivers, but they still behave similarly enough to the P-Zeros used in F2 to provide a valid reference for the younger drivers. BOSS GP also has fairly loose restrictions on testing, something which many junior drivers have exploited to gain experience with new circuits, new cars and learning how to handle cars with high levels of downforce.