McLaren leads Monaco GP upgrade race as Mercedes debuts radical rear wing concept

McLaren has emerged as the team with the most extensive upgrade package for this weekend's Monaco Grand Prix, with six changes listed in the FIA document. Mercedes, meanwhile, has brought a single but radical rear wing concept featuring small winglets within the fairing volume aimed at increasing local downforce.

Why it matters:

Monaco's unique layout demands maximum mechanical grip and low-speed downforce, making even small upgrades highly impactful. Teams are racing to gain an edge on one of the most challenging circuits on the calendar where overtaking is almost impossible and qualifying position is critical.

The details:

• McLaren (6 updates): Larger engine cover for cooling range, Monaco-specific front suspension, revised beam wing and rear corner for airflow conditioning, new rear wing winglet cascade optimized for drag, and diffuser modification with updated floor stay for reliability.
• Mercedes (1 update): Radical rear wing with small winglets within the rear wing fairing volume, designed to increase local downforce without sacrificing drag efficiency.
• Red Bull (4 updates): Three reliability-focused changes (enlarged front brake cooling exits, front suspension fairings for greater steering lock, revised engine cover and sidepod cooling exits) plus a performance-oriented rear wing with extended third element and SM fairing to increase local load.
• Ferrari (3 updates): Modified front suspension (trackrod, legs, fairings) for greater steering angle, plus an additional gurney on the front floor board trailing edge and an extra stay on the diffuser winglet to boost aerodynamic load.

What's next:

With Monaco's tight and twisty nature, these upgrades could prove decisive in qualifying and race trim. Teams will evaluate performance in FP1 and FP2, with the real test coming during Saturday's all-important qualifying session where track position is everything.