Current F1 hybrid power units are ill-suited for high-speed tracks like Spa, leading to energy-management issues and driver frustration.
Key facts
- •The Spa-Francorchamps circuit is 4.3 miles long and features a 77-foot elevation climb at the Eau Rouge and Raidillon corners.
- •Max Verstappen noted that current F1 cars operate with roughly 450 to 500 bhp for much of the lap.
- •Mercedes driver Kimi Antonelli secured his sixth win of the 2026 season at the Belgian Grand Prix.
- •George Russell retired from the race after a collision with Lewis Hamilton following power management issues.
- •Self-learning AI systems used to manage energy deployment are increasingly cited as a source of unpredictable car performance.
Formula 1 returned to the Spa-Francorchamps circuit in Belgium this weekend, but the event highlighted ongoing concerns regarding the performance of current F1 machinery. Drivers and teams are struggling with hybrid power units that provide limited electrical energy, forcing them to coast into corners to recharge batteries. This dynamic has significantly altered the racing experience at one of the sport's most historic venues.
By the numbers
Energy Management and Driver Frustration
Red Bull driver Max Verstappen noted that for much of the lap, the cars operate with limited power, comparing the output to that of a Formula 3 vehicle. The hybrid systems, which feature a 4 MJ battery capacity, require precise energy deployment strategies often managed by opaque, self-learning AI systems. These systems can cause unexpected power losses if small amounts of energy are diverted to manage wheelspin or torque. Mercedes driver George Russell experienced significant issues during the weekend, reporting a loss of speed on straightaways despite being at full throttle. His race ended in a collision with Lewis Hamilton after Russell attempted an overtake while regenerating energy, resulting in a DNF for Russell and a 5-second penalty for Hamilton.
Race Results and Circuit History
Mercedes driver Kimi Antonelli won the Belgian Grand Prix, marking his sixth victory of the season. Antonelli had qualified on pole, three tenths of a second ahead of Verstappen. Audi's Gabriel Bortoleto finished eighth, securing four points for his team. Spa-Francorchamps, which first featured in the F1 season in 1950, remains the longest track on the calendar at 4.3 miles. While the circuit is widely regarded as a premier racing venue, the current F1 regulations have made high-speed corners like Pouhon and the climb through Eau Rouge and Raidillon less challenging for drivers, who must prioritize energy conservation over flat-out speed.
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This article was independently rewritten by ManyPress editorial AI from reporting originally published by Ars Technica.
