Monza's 2026 Italian Grand Prix showcased the most extreme example yet of Formula 1's new "yo-yo racing" phenomenon under the radically revised regulations. Cars ran in tight packs, unable to break away due to the powerful combination of Monza's massive slipstream effect and the 2026 energy deployment rules. Overtake mode allowed slower cars to pass easily, but leaders drained their batteries defending and became sitting ducks on the next straight.

Max Verstappen highlighted the frustration, stating he didn't enjoy being driven by "like you're a turtle." Despite lacking the power unit performance to challenge the Mercedes of George Russell for the win, Verstappen stuck with the Briton for long stints. Russell could not pull away, and the pair lost time battling, allowing Kimi Antonelli to charge through the field.

McLaren boss Andrea Stella called it one of the busiest weekends ever for engineers managing power units and batteries. He noted a faster car struggles to pull away from a slower one, with the slipstream-boost combination costing up to half a second per lap. Ferrari's Fred Vasseur agreed attacking or defending was "quite impossible" due to battery drain. Monza 2026 is viewed as the definitive race for the new regulatory era.