Balance of Performance (BoP) is one of the defining pillars of GT3 racing. It’s the mechanism that allows manufacturers to race against one another on an equal playing field. But who created the system that makes that possible?
The answer traces back to a few individuals who worked together to create a pivotal moment in GT racing history.
In the early 2000s, international GT racing was facing a familiar problem: escalating costs and shrinking manufacturer diversity. Factory-driven development wars made it difficult for private teams to compete sustainably.
Stéphane Ratel, founder and CEO of SRO Motorsports Group, brought forward solutions that were radical for its time: create a customer-focused GT category, control performance through regulation rather than open development, and prioritize long-term sustainability. That concept became GT3.
FIA Technical Advisor Peter Wright, with the support of FIA President Max Mosley, was the one to introduce the concept of Balance of Performance. In late 2004, Wright was given the challenge of equalizing the performance of the Maserati MC12 so it could compete fairly in the FIA GT Championship. What we now know as Balance of Performance had never been implemented at that level of international GT racing, but Wright successfully made it work.
GT3 was then officially introduced under FIA regulations and built around a structured homologation process. Manufacturers would design and submit cars for approval, and once homologated, those cars would compete within a defined performance window.
Over time, the FIA’s involvement formalized the homologation structure, while SRO maintained responsibility for applying and managing Balance of Performance in its own respective championships globally.
Two decades later, the results speak for themselves. GT3 has become the global standard for GT racing, with dozens of homologated cars competing across multiple continents. Manufacturer diversity remains high, grids remain strong, and customer teams remain at the heart of it all.
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