Key Highlights:
- The FIA declared a heat hazard for the relocated race weekend at Sepang in Malaysia, where track temperatures reached the low 60s Celsius.
- George Russell confirmed Mercedes chose not to develop a cockpit cooling vest system, prioritizing financial resources on car performance under the $215 million budget cap.
- Russell is urging the FIA to exempt driver cooling technology from the cost cap to allow development without sacrificing aerodynamic and mechanical upgrades.
Brutal Track Conditions Trigger FIA Heat Hazard in Malaysia
Sweltering track and ambient temperatures have prompted the FIA to officially declare conditions in Malaysia a heat hazard. The race event, which serves as the Bahrain Grand Prix after being relocated to the Sepang circuit due to conflict in the Middle East, presented severe environmental stress during Friday’s second practice session. Track temperatures climbed into the low 60C range, while ambient air temperatures were forecast to exceed 31C. Inside the cockpit, competitors are forced to endure these thermal loads layered in full protective gear, including fireproof underwear, race suits, gloves, and helmets.
To combat the punishing conditions, the governing body allows drivers to utilize a cooling vest to stabilize core body temperatures. However, Mercedes driver George Russell revealed he will not be using the equipment, citing financial constraints imposed by Formula 1’s budget restrictions. Russell openly expressed his frustration, noting that he and teammate Kimi Antonelli will be left to endure the weekend without the active cooling aid.
I was sweating sitting on the beach in my shorts and flip-flops,
Russell told the Daily Mail. Let alone with fireproof underwear, suit and helmet. It will be like sitting in an oven.
He emphasized that the physical toll extends beyond Sepang, noting: I would like to wear the cooling vest this week, and I would like to wear it next week (in Singapore).
Mercedes Prioritizes Upgrades Over Driver Cooling Systems
While competing outfits on the grid have successfully integrated cooling vests into their operations, Mercedes elected not to allocate development funds toward the technology. Integrating the fluid-based cooling hardware into the car incurs engineering and manufacturing expenses that must be absorbed under this season’s strict $215 million cost cap.
Rather than investing financial ceiling space into cockpit cooling devices, Mercedes directed its spending into performance enhancements for the W17. The team arrived in Malaysia boasting an extensive package featuring updates across seven distinct components—a development push calculated to unlock approximately three-tenths of a second in lap time.
But the team asked me, ‘Look, we can develop it, and we can put the money towards it but at a cost when we are trying to develop the car within the budget cap,’
Russell explained.
Grid Divided as Russell Urges Regulatory Reform
Even among teams possessing the cooling vest technology, the grid remains split on its overall efficacy. Under current regulations, drivers opting out of the active cooling setup can instead carry an optional 5kg ballast. Several competitors have expressed skepticism about the vests, arguing they offer negligible benefits or risk worsening cockpit conditions if the fluid routed through the internal tubing begins to heat up during extended stints.
Red Bull’s Max Verstappen is among those who will bypass the cooling apparel this weekend, pointing to psychological conditioning instead. I think I had four or five months of very intense preparation. Yeah, deep mental preparation of not giving an F…!
Verstappen remarked.
Russell, however, remains convinced that functioning thermal gear provides a clear safety advantage and believes safety innovations should never compromise competitive pace. We should all be wearing the vest,
Russell stated. When it works, it works great. The FIA should step in and allow us to develop it outside the budget cap.
Reflecting on previous struggles with rapid thermal shifts, Russell added: I think my problems there were more the shock from going into the ice bath, going from extreme heat to extreme cold. So perhaps I have learned from that and will be ok.
Why This Matters
Russell’s remarks bring long-standing cost-cap dilemmas back to the forefront of Formula 1. Since the introduction of the financial regulations, teams have had to calculate trade-offs between performance upgrades and secondary operational systems. By mandating that driver cooling technology falls inside the $215 million ceiling, the current rulebook inadvertently forces teams to choose between aerodynamic development and physiological relief. Russell’s push for an explicit FIA cost-cap exemption highlights a growing argument that driver welfare and extreme-heat countermeasures should be treated as non-performance safety items rather than development trade-offs.
Frequently Asked Questions
Why did Mercedes choose not to develop a cooling vest?
Mercedes prioritized its spending on on-track performance under Formula 1’s $215 million cost cap. Developing and integrating the cooling vest system would have taken financial resources away from the team’s seven-component upgrade package introduced on the W17 in Malaysia.
What alternative do drivers have if they do not wear a cooling vest?
Drivers who opt not to wear the cooling vest during the heat hazard conditions can run an optional 5kg ballast instead, as some competitors believe the cooling hardware adds weight without significant benefit or fear the circulating liquid may heat up.
What rule change is George Russell demanding from the FIA?
Russell wants the FIA to classify the development and installation of driver cooling vests outside of the budget cap restrictions so teams can provide driver temperature regulation without compromising car development spending.
