Rob Smedley explains Lewis Hamilton's Ferrari struggles with 'old slipper' theory

Former F1 engineer Rob Smedley has pinpointed Lewis Hamilton's deeply ingrained Mercedes habits as the core reason for his difficult first season at Ferrari, describing the champion's former team as a comfortable 'old slipper' that was hard to replace. Smedley argues the stress of adapting to Ferrari's different processes, especially with a new race engineer, significantly impacted Hamilton's performance, leading to his first podium-less season.

Why it matters:

Hamilton's high-profile move was meant to reinvigorate his career and Ferrari's championship hopes, but instead it highlighted the immense challenge a driver faces when leaving a system they helped build over a decade. This adaptation period is a critical, often underestimated factor in driver transfers, especially for legends with deeply established working methods. How quickly Hamilton and Ferrari can synchronize will define their 2026 competitiveness.

The details:

• The 'Old Slipper' Effect: Smedley, a former Ferrari engineer, used the analogy that Mercedes “fit him like an old slipper,” creating a level of comfort and automatic understanding that is impossible to replicate immediately at a new team.
• Engineer Relationship is Key: Hamilton's performance is heavily reliant on his relationship with his race engineer. The end of his long-term partnership with Mercedes' Pete Bonnington and the subsequent pairing with Ferrari's Riccardo Adami created a foundational shift.
• The Stress of Adaptation: Smedley, drawing from his own experience moving from Ferrari to Williams, explained the mental burden: “The automatic assumption is ‘why can't they just do it how I'm used to?’” This adaptation stress, he contends, played “quite a big part” in Hamilton's struggles.
• Unresolved Setup for 2026: The situation is compounded by Ferrari not yet naming a permanent replacement for Adami as the new season begins, adding an element of uncertainty to Hamilton's crucial second year.

What's next:

With one season of experience inside the Ferrari system, the expectation is for a significant step forward.

• Smedley predicts more “gelling” between Hamilton and the team, leading to a better mental state and improved on-track competitiveness.
• The focus for 2026 will be whether Hamilton can fully adapt Ferrari's processes to his style, or if the team can successfully adapt to him, leveraging his seniority and experience to build a new, optimized working method. This synergy is the single biggest factor in determining if Hamilton can return to the podium and challenge at the front with Ferrari.