Oscar Piastri Demands '2023-Style' Development Surge as McLaren Struggles With Mercedes Power Unit Deficit in 2026

Oscar Piastri targets a 2023-style recovery for McLaren after power unit failures and a pace deficit left the team trailing Mercedes and Ferrari in China.

By: AXL Media

Published: Mar 24, 2026, 8:47 AM EDT

Source: Information for this report was sourced from PlanetF1

Defending Champions Relegated to No Man’s Land

The transition into the 2026 Formula 1 season has proven exceptionally difficult for McLaren, the team that entered the year as the defending double world champions. Despite their recent pedigree, the reset of chassis and engine regulations has seen the Woking-based outfit fall into what Oscar Piastri describes as "no man's land." Currently established as the third-fastest team on the grid, McLaren found itself significantly off the pace of both Mercedes and Ferrari during the recent sessions in Shanghai. This performance gap has sparked internal urgency to replicate the mid-season development curve of 2023, which saw the team transform from backmarkers into consistent podium contenders through a series of highly effective aerodynamic upgrades.

Catastrophic Double DNS Overshadows Technical Progress

The Chinese Grand Prix weekend ended in total frustration for McLaren as neither car was able to take the race start. Pre-race inspections revealed independent electrical faults within the Mercedes-supplied power units of both Piastri and Lando Norris, resulting in a rare double "Did Not Start" (DNS) for the team. This mechanical failure prevented McLaren from collecting vital race-trim data and assessing their true long-term pace against their rivals. While Piastri noted that the team felt they had maximized the power unit’s potential during qualifying, the underlying reliability issues suggest a deeper struggle with the integration of the new 2026 hybrid systems.

The Complexity of the Mercedes Power Unit Alliance

A recurring theme for McLaren in early 2026 has been a perceived lack of transparency and data sharing from their engine supplier, Mercedes High Performance Powertrains (HPP). Team principal Andrea Stella previously highlighted a deficit in information that has hindered McLaren's ability to optimize the engine’s performance over a single lap. Piastri echoed these concerns, noting that the team often discovers "chunks of time" in post-qualifying analysis that they were unaware of during the session. While the Australian driver believes that having multiple qualifying sessions in a single weekend has helped bridge this knowledge gap, he maintains that a "pretty big step" is required to challenge for pole positions.