The Aston Martin driver has been one of the most vocal critics of the current regulations this season, and his frustration boiled over again after Friday practice in the Principality.
Alonso said he believed the way the current power units harvest and deploy energy had fundamentally changed the experience of driving around one of Formula 1’s most iconic circuits.
“This is probably the worst generation of cars I ever drove in Monaco,” he lamented.
“The way you charge the battery, with the braking and lifting off and things like that, obviously creates a lot of inconsistency into the engine braking of the car.
“Sometimes you have less, sometimes you have push and sometimes not.
“If the battery is completely full, then you don’t recharge because the battery is full. So you don’t have engine braking. It’s like pushing.
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“It’s just the rules. Hybrid cars should not be racing. It’s as simple as that.”
Alonso’s latest criticism continues a campaign he has waged against the current generation of machinery since the beginning of the season.
Last round in Canada, the two-time world champion argued F1 had moved away from what he considers genuine racing, claiming energy deployment now plays a bigger role than driver-versus-driver competition.
🔴 RED FLAG 🔴
Fernando Alonso has had a sideways moment at the chicane, leaving a trail of debris in his wake! 😱#F1 #MonacoGP pic.twitter.com/4fdrEDQjau
— Formula 1 (@F1) June 5, 2026
Alonso’s complaints have also been amplified by Aston Martin’s own struggles.
The 44-year-old endured a difficult Friday in Monaco, finishing 20th in both sessions and also hitting the barriers approaching the Nouvelle Chicane in FP1.
He pointed to ongoing driveability issues, including inconsistent behaviour under braking, while also describing the car as suffering from “chronic understeer” throughout the day.
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