The latest WEC Spa BoP adjustments have delivered a significant shakeup among the Hypercar contenders with Ferrari 499P and Toyota GR010 Hybrid facing huge cuts while Aston Martin receives a boost.
These changes are poised to reshape the competitive landscape at the iconic 6 Hours of Spa-Francorchamps, the penultimate event before the prestigious Le Mans 24 Hours.
Aston Martin Valkyrie has been granted a substantial advantage, shedding 16 kilograms from its minimum weight to run at 1035 kg making it the second-lightest car in the Hypercar class behind the Peugeot 9X8.
Additionally, the Valkyrie’s maximum power allowance has been increased by 15 kW (approximately 20 horsepower) to the category’s ceiling of 520 kW (697 bhp). This adjustment follows the Valkyrie’s underwhelming performances in the first two rounds at Qatar and Imola, where it struggled to match the pace of its rivals.
The BoP formula which factors in the ten fastest laps plus 60 percent of all race laps from the last three WEC rounds has now incorporated Aston Martin Valkyrie’s actual race data, resulting in a more favorable balance for the British manufacturer.
In stark contrast, Ferrari and Toyota have both been hit with what can be described as a double blow under the WEC Spa BoP. The Ferrari 499P faces a 12-kilogram increase in minimum weight, bringing it up to 1057 kg alongside a reduction in maximum power by 19 kW to 489 kW below 250 km/h.
However, Ferrari gains a slight power increase above the 250 km/h threshold, which somewhat offsets the losses but is unlikely to fully compensate for the overall performance hit.
The Toyota GR010 Hybrid, meanwhile, is now the heaviest car on the grid at 1069 kg up 4 kg from Imola and suffers a 20 kW power reduction below 250 km/h, making it the least powerful Hypercar in that speed range.
Toyota does receive a 4.7 percent power gain above 250 km/h but the added weight and power cut below this threshold represent a significant handicap.
BMW and Porsche have also experienced changes though less dramatic than Ferrari and Toyota. The BMW M Hybrid V8 which finished second at Imola has lost 10 kW of power under 250 km/h and gained 7 kg in weight now weighing 1049 kg with 503 kW of power.
The Porsche 963 has been made 2 kg heavier at 1055 kg and sees a 9 kW power reduction. Cadillac V-Series.R is up 1 kg to 1042 kg but loses 9 kW of power and Alpine A424 gains a single kilogram but receives a 1 kW power boost, maintaining the maximum 520 kW allowed.
The Peugeot 9X8 remains untouched by the BoP changes, holding steady at the minimum weight of 1030 kg and the maximum power of 520 kW. This stability could position Peugeot as a strong contender at Spa especially given the adjustments affecting its main rivals.
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All LMGT3 cars get WEC Spa BoP hits except Ford Mustang
Porsche 911 GT3 R and Corvette Z06 GT3.R lose around five percent of power with BMW M4 GT3 and McLaren 720S GT3 Evo down by four percent.
Weight changes in this class vary with BMW gaining 11 kg and McLaren 8 kg while Corvette loses 2 kg and Aston Martin Vantage GT3 Evo and Ferrari 296 GT3 shed some weight.
The latest BoP adjustments are designed to create a more level playing field by balancing the performance disparities observed in previous races.
The methodology used for these adjustments is rigorous, analyzing detailed race data from the last three WEC rounds, including the 2024 Bahrain finale and the 2025 Qatar and Imola races.
This data-driven approach aims to ensure that no manufacturer gains an undue advantage, promoting closer competition and more unpredictable racing.
Practice sessions for the 6 Hours of Spa commence at 11:30 local time on Thursday, setting the stage for what promises to be a fiercely contested race.
