Super GT track. Parity Super GT is unique in its open and blunt statement that it is committed to providing exciting racing first, at the expense of runaway investment by works teams. GT500 cars are fitted with many common parts, lowering costs and equalizing the performance of those parts across all competitors. In the GT300 class, air restrictor sizes, minimum weights, ride heights, and maximum turbo boost pressures are modified on a race-to-race basis to balance performance across all cars. All adjustments to the regulations and the balance of performance are publicly accessible. The regulations stipulate that no single driver drive over two-thirds of the race distance, which affects the timing of pit stops and driver changes, therefore preventing strategy from dominating the competition. Formerly, the regulations went further and required pit stops and driver changes be done within mandatory windows; in 2004, during an exhibition race held at Fontana, a few teams were penalised after the race ended when race officials discovered their pit stops came one lap before the mandatory window had opened. Success Weight Perhaps the best-known performance balancing system in use in the Super GT is its Success Ballast system, also known as Success Weight and formerly referred to as "weight handicap". Weight penalties are assigned depending on a car's performance during the race, similar to systems used in the DTM and the BTCC. The system metes out two kilograms of ballast per point scored; it formerly added ballast based on qualifying positions and individual lap times. Stickers on the cars display every car's weight handicap level. In the 2007 season, the Takata NSX team achieved a record-breaking 5 pole positions in the first 7 races, but due to the weight handicap system, they only won one race among those seven. Such regulations keep the championship in play up to the final race of the season: only two GT500 teams (ARTA in 2007 and MOLA in 2012) and one GT300 team (GAINER with André Couto in 2015) have managed to clinch a driver's championship prior to the final race. Following repeated cases of teams and drivers not winning a single race but still winning the championship (in 2003, neither the GT500 nor GT300 champions won a single race in particular), the handicap system was changed in 2009 to combat sandbagging, discouraging a team from intentionally performing poorly in order to secure a more favorable weight handicap.