# Mercedes Bahrain GP Upgrade Question

> Mercedes' big Bahrain GP upgrade still a big question mark.
- Title: Mercedes Bahrain GP Upgrade Question · Motorsport | Shortify
- Summary: Mercedes' big Bahrain GP upgrade still a big question mark. Mercedes' major aerodynamic update for Bahrain GP faces uncertainty due to poor performance on…
- Keywords: mercedes, bahrain gp, w17, sepang, pirelli c4, kimi antonelli, george russell, toto wolff, sports, cars, Bahrain, Upgrade
- Source: Motorsport — https://motorsport.com/f1/news/why-mercedes-bahrain-gp-upgrade-is-still-a-big-question-mark/10861508
- Author: Stuart Codling
- Published: 2026-10-03T11:21:58+00:00
- Read time: 1 min
- Topics: mercedes, bahrain gp, w17, sepang, pirelli c4, kimi antonelli, george russell, toto wolff, f1, sports, cars
## Mercedes' Bahrain GP Upgrade
Mercedes introduced a major aerodynamic update package for the Bahrain GP after a circuit Formula 1 hasn't visited since 2017.
## Qualifying Challenges
Kimi Antonelli set fourth-fastest time after a track-limits violation in Q2 left him with only one set of Pirelli C4 soft tyres for Q3.
## W17 Upgrade Details
The W17 features a new floor with major revisions to the leading edge, diffuser, and rear wheel furniture, plus a redesigned sidepod profile.
## Track Surface Issues
Sepang's abrasive asphalt surface has caused Mercedes to lose time on straights and experience excessive understeer during low-speed turns.
## Team Concerns
Team boss Toto Wolff described the W17's performance as 'things we haven't seen all year' due to the track's unique conditions.

> We've been a little bit caught out on Friday with some car behaviour that we didn't see all year.
## Qualifying Impact
George Russell was eighth fastest despite the upgrade, with both Mercedes drivers gaining grid positions due to Isack Hadjar's engine penalty.
## Performance Uncertainty
Mercedes' W17 upgrade shows improved numbers but poor lap times on Sepang's rough track make it a 'big question mark' for the Bahrain GP.

> That is the big question mark
## Key takeaway

Mercedes' major aerodynamic update for Bahrain GP faces uncertainty due to poor performance on Sepang's abrasive track.