Sainz onboard footage contradicts blue flag explanation after Piastri Hungarian GP collision – Carlos Sainz’s explanation for his collision with Oscar Piastri during the Hungarian Grand Prix has come under fresh scrutiny after onboard footage appeared to contradict the Williams driver’s post-race account.
Sainz insisted he was unaware the McLaren driver was attempting to lap him because he received no blue flag warning on his steering wheel. However, video from his car shows him passing multiple trackside blue flags before the incident on lap 38.
The clash became one of the defining moments of Sunday’s race as championship contender Piastri lost significant time while trying to navigate traffic. Although the Australian later retired with a gearbox failure, the collision with Sainz sparked widespread debate over the Williams driver’s responsibility as a backmarker.
Onboard footage raises questions over Sainz’s explanation
The incident unfolded as Piastri attempted to lap Sainz while the Spaniard was engaged in a battle with Aston Martin driver Fernando Alonso.
Rather than yielding immediately, Sainz continued racing Alonso, with the two making contact as Piastri tried to pass. The stewards handed the Williams driver a five-second time penalty for causing the collision.
After the race, Sainz apologised but argued he had not realised Piastri was lapping him.
“I had no idea I was being lapped,” Sainz said, adding that the blue warning light on his steering wheel had not illuminated.
Reports after the race indicated that some drivers experienced technical issues with the in-car blue flag warning system. However, onboard footage from Sainz’s Williams appears to show him driving past at least seven clearly displayed blue flags around the Hungaroring before the collision, casting doubt on his explanation.
Oscar Piastri labels the situation “unacceptable”
Piastri showed little sympathy for Sainz’s defence after climbing out of the car. The McLaren driver dismissed the argument that he had been sitting in Sainz’s blind spot, saying the issue extended beyond whether the Spaniard had physically seen him.
“I don’t really care whether he saw me or not,” Piastri said.
“The fact that he didn’t see me and that no one pointed it out to him, or that there was a lack of comprehensive attention, is unacceptable.”
The incident cost Piastri valuable time before his afternoon ended prematurely with a gearbox failure, eliminating any opportunity to recover the lost ground.
Ralf Schumacher calls for tougher punishment
Former Formula 1 driver and Sky Germany analyst Ralf Schumacher believes the stewards did not go far enough with the five-second penalty.
Schumacher argued that Sainz’s actions warranted additional sanctions, suggesting the Williams driver should carry a penalty into the Dutch Grand Prix at Zandvoort.
“A normal penalty isn’t sufficient. In my opinion, Carlos Sainz should also be penalized for the next race. He needs to get an additional penalty in qualifying at Zandvoort,” Schumacher said.
He described Sainz’s driving during the incident as “absolutely unacceptable.”
While Formula 1 stewards considered the five-second time penalty sufficient, the emergence of the onboard footage is likely to keep the debate alive as attention turns to the next round of the championship.
Whether the FIA reviews the incident further remains to be seen, but the available video evidence has intensified scrutiny of Sainz’s explanation and fuelled criticism from both McLaren and sections of the Formula 1 paddock.
Would you like to see more TJ13 Formula 1 coverage? Add us to your favourites list on Google to receive trusted F1 news.
Craig Alderson is Senior Editor at TJ13, where Craig oversees newsroom operations and coordinates editorial output across the site. With a background in online sports reporting and motorsport magazine editing, he plays a key role in maintaining consistency, speed, and accuracy in TJ13’s coverage.
During race weekends, Craig acts as desk lead, directing contributors, prioritising breaking stories, and ensuring timely publication across a fast-moving news cycle.
Craig’s work focuses heavily on real-time developments in the paddock, including team updates, regulatory decisions, and emerging controversies. This role requires a detailed understanding of Formula 1’s operational flow, from practice sessions through to race-day strategy and post-race fallout.
With experience managing editorial teams, Craig ensures that TJ13 delivers structured, reliable coverage while maintaining the site’s distinctive voice.
Craig has a particular interest in how information moves within the paddock environment, and how rapidly developing stories can be accurately translated into clear, accessible reporting for readers.