🚨 Introduction : BoP Strikes Again, This Time BMW and McLaren Feel the Heat

In a surprising turn os events following qualifying, the promoters of the 2025 GT4 European Series have released Balance of Performance (BoP) changes that directly affect the BMW M4 GT4 and McLaren Artura GT4 entries. The changes come after a very tight qualifying session in which both manufacturers showed strong pace.

This sudden BoP decision is making waves among fans and with teams in the paddocks. Why now? Who benefits? And how does it reshape the grid?

Let’s break it all down.

 

🛠️ What is BoP in Racing?

Balance of Performance, or BoP, In GT and endurance racing, the Balance of Performance (BoP) is a system that ensures that all cars are competing fairly. BoP helps keep the racing close by changing things like:

• Engine power (boost pressure or restrictions)
• Vehicle weight
• Ride height
• How much fuel it can hold.

In short, BoP is racing’s way of making things fair, but it’s not without its problems.

🏁 The Situation: BMW and McLaren Under the Spotlight

📍 Event :- 2025 GT4 European Series

📍 Location :- Circuit de Spa-Francorchamps, Belgium

📍 Session affected :- Qualifying 2

📍 Date :- July 17, 2025

Series officials were left stunned when several teams running the BMW M4 GT4 (G82) and McLaren Artura GT4 put in a top-notch performance after a stellar qualifying round. Less than an hour after the session ended, the BoP adjustment was announced.