Azerbaijan GP: Six tech talking points to watch

Formula 1 heads to Baku for the Azerbaijan Grand Prix, the first race of a punishing triple-header that could define the world championship. But Baku's long straights and tight city section put a premium on aero efficiency, so teams are focusing on optimization rather than major upgrades. Still, there's plenty of technical intrigue this weekend.

Why it matters:

The title fight remains wide open, and with rules stability into 2027, teams are juggling short-term performance with long-term development. Even small gains in Baku could have a ripple effect across the next three races.

The details:

• Williams' innovative lighter chassis: After a troubled start, Williams brings a new, lighter chassis produced with unique manufacturing techniques. Team boss James Vowles insists "there's no other chassis in the grid made the way we've done it," but Alex Albon cautions it's "a good step" not a full leap.
• Aston Martin trims weight: Following its Hungary overhaul, Aston Martin introduces lighter components to get closer to the 768kg limit. Mike Krack says some changes won't even be declared—they'll fly under the radar.
• Perez gets Ferrari's ADUO 2 engine: Cadillac's Sergio Perez will run Ferrari's latest power unit in Baku, while Valtteri Bottas waits. The extra power is a welcome boost, and Baku's straights make it a sensible place to take a grid penalty.
• McLaren brings back the H-wing: After unlocking speed in fast corners, McLaren reintroduces its low-drag H-wing from Monza and evaluates another upgrade aimed at straightline and low-speed weaknesses. Rob Marshall says the close fight keeps motivation high.
• Energy deployment headaches: The long main straight demands precise battery management. Expect big speed differentials between cars on outlaps and push laps in qualifying, as teams save energy until the last moment.
• Brake and tyre cooling concerns: With 2026's energy harvesting reducing brake usage, discs and tyres run cooler. McLaren's Marshall warns drivers could arrive at Turn 1 "relatively cold," risking lock-ups.

The big picture:

Mercedes and Ferrari are holding back their final major upgrade packages, so these incremental tweaks could shape the midfield battle. The triple-header will test reliability and adaptability, and Baku's unpredictable nature often rewards those who get the details right.

What's next:

Williams' new chassis and McLaren's continued development are the main storylines to follow this weekend. If the innovations deliver as hoped, they could change the competitive order heading into the season's decisive stretch.