Russell: Mercedes reliability a 'big concern' after Antonelli DNF in Spain

George Russell has identified reliability as a critical issue for Mercedes after an electrical shutdown forced Kimi Antonelli out of the Spanish Grand Prix while running second. The failure capped a strategic nightmare for the Brackley squad as Lewis Hamilton's Ferrari cruised to victory in Barcelona.

Why it matters:

Mercedes' power unit troubles are mounting deep into the 2026 season. Russell already suffered a PU failure in Canada, and customer McLaren has also endured HPP reliability headaches. With Ferrari executing a flawless three-stop strategy, persistent mechanical gremlins could prove costly against a resurgent Hamilton and consistent Antonelli.

The details:

• Antonelli's W17 suffered an electrical shutdown four laps from the finish, handing second back to Russell after the Italian had briefly overtaken him.
• Mercedes dithered between a two-stop strategy and matching Ferrari's three-stopper, leaving both drivers in "no man's land" as Hamilton disappeared up the road.
• A Virtual Safety Car handed Hamilton a free stop, sealing the win once the seven-time champion held track position on fresher tires.
• Russell admitted his pace faded due to confused strategy calls, leaving him unsure if he maximized the W17's potential.
• The Briton stressed that HPP's recent failures are a "big concern," with the team needing answers before reliability costs more vital points.

What's next:

Mercedes must quickly diagnose Antonelli's electrical failure and stabilize its HPP units before the next round. With Hamilton second in the standings just nine points clear of Russell, and Antonelli holding a 50-point lead, every DNF threatens to swing the 2026 title battle.