Technical glitch forces early retirement for Alonso and Stroll at Mexico City
Honda explains why both Aston Martin drivers pulled out after just five laps in Mexico City, citing a power‑unit failure that triggered a safety‑car‑style shutdown.

Mexico City turned into a brief, dramatic showcase for Aston Martin when both Fernando Alonso and Lance Stroll retired after completing only five laps of the Grand Prix on Sunday. The premature exits were not the result of driver error or a collision, but a technical failure that forced the team to shut down the cars' power units as a precaution.
What went wrong?
According to a statement released by Honda, the power‑unit supplier for Aston Martin, the two cars suffered a sudden loss of hydraulic pressure in the engine’s oil pump system. The drop in pressure triggered the car’s electronic control unit (ECU) to command an immediate engine shutdown to protect the hardware from catastrophic damage. Both drivers were instructed by the team to pull into the pits and retire, as the issue could not be rectified on track.
Honda’s technical director, Dr. Hiroshi Kawai, explained that the fault originated from a faulty sensor that fed erroneous data to the ECU. "When the sensor reported a critical loss of oil pressure, the safety protocols automatically cut power to prevent engine seizure," he said in the official release. The problem was isolated to the two Aston Martin chassis that were running the latest specification of the Honda RA621H power unit, and no other teams reported similar symptoms during the session.
Impact on the race and championship
The double retirement dealt a significant blow to Aston Martin’s points haul in Mexico, a race where the team had been hoping to capitalize on a strong qualifying performance. With both cars out of the running, the team will now rely on its remaining drivers, if any, to salvage points later in the season. The incident also raises questions about the reliability of the new power‑unit package ahead of the next round in Brazil, where the high‑altitude circuit will again test engine cooling and oil circulation.
For the drivers, the early exit was particularly disappointing for Fernando Alonso, who had been targeting a podium finish after a strong start to the season. Lance Stroll, meanwhile, missed an opportunity to climb the midfield standings. Both drivers will return to the garage with a clear message from Honda: the issue has been identified and corrective actions are being implemented before the next race weekend.
For Indian fans
The Mexican Grand Prix started at 02:00 IST on Sunday, and the race was broadcast live on FanCode with English commentary. Indian viewers saw the two Aston Martin cars pull into the pit lane just after the start‑line ceremony, a moment that sparked a flurry of social‑media speculation before Honda’s clarification arrived. Fans can catch a detailed post‑race analysis on FanCode’s “F1 Insights” segment, which will break down the technical failure and its implications for the championship battle.
Source: Formula1.com