Nico Rosberg has spent four full seasons sharing a garage with Lewis Hamilton, beat him to the 2016 World Championship and walked away from Mercedes five days later. A decade on, he is offering arguably the most pointed assessment yet of where Hamilton stands in red.
Speaking on his own podcast and in subsequent Sky Germany appearances, Rosberg argued that Hamilton is racing 'with joy again' at Ferrari and that the seven-time champion's 2026 form has nothing to do with chance. His evidence is not a body-language read off a TV broadcast, it is a stream of inside reporting from his close friend, Ferrari team principal Fred Vasseur.
'Hamilton was the starting point for key design choices on the SF26', Vasseur said in the build-up to the Miami Grand Prix, in remarks Rosberg has leaned on heavily. The Frenchman explained that when Ferrari sat down with its drivers in June 2025 to outline the 2026 car concept, Hamilton arrived with written documents proposing specific suspension, balance and platform changes. Those proposals, in Vasseur's words, ended up shaping the final car.
For Rosberg, that distinction is everything. Hamilton spent three of his last four Mercedes seasons publicly frustrated by a car that did not respond to his inputs, particularly through low-speed corners. His 2024 Belgian Grand Prix podium was the last he stood on for Mercedes. The drought lasted 16 months and ended in Shanghai in March, when he finished third behind a McLaren one-two and called the race 'one of the most fun I've had since battling Nico in Bahrain in 2014'.
That Bahrain reference, Rosberg insists, is not random. Hamilton was reaching back to the moment that defined his entire Mercedes era to describe how a midfield Ferrari fight made him feel. The qualifying numbers underline the swing. Across 2025, Hamilton ended the year roughly 0.250s a lap slower than Charles Leclerc in qualifying. Through the first four 2026 events, that gap has flipped to roughly 0.017s in Hamilton's favour. A four-race sample is not proof of anything by itself, but the direction is clear.
Miami, on the surface, complicates the narrative. Hamilton qualified sixth, finished sixth on the road, was promoted to fifth via penalties and called the race 'a long afternoon in no man's land' after first-lap contact with Franco Colapinto. He flagged the same battery-deployment problem he raised in Japan and China. Hamilton himself admitted post-race he 'had nothing' to fight with.
Rosberg's argument is that Hamilton's ceiling, not his Miami floor, is what should worry Mercedes and McLaren. Vasseur has confirmed Hamilton spent long stretches at Maranello over winter on the simulator, signing off on suspension feel and steering response choices that engineers had previously made without driver input. Hamilton himself, in his Christmas Day 2025 social-media post, wrote that he had 'forgotten who I was for a moment, but that's gone for good'.
Rosberg is not in the habit of romanticising Hamilton. He spent five years finding the cracks in his old teammate's armour and exploited them with surgical efficiency in 2016. That makes his current reading of Hamilton, sourced directly from Maranello, the most believable inside-line take of the 2026 season so far. If Rosberg is right, Ferrari's Miami stumble is a setback rather than a sign, and the Hamilton problem is back on the desk of every team principal not called Fred Vasseur.
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