Baku, Friday Afternoon: Mercedes Are Fastest, but the Circuit Is Whispering About Fragility

Two in the afternoon in Baku, thirty degrees, and inside the McLaren garage a man is kneeling beside the car. He is not holding a spanner. He is holding a plastic zip tie. About two hand-spans long, off-white, the sort of thing you use to bundle electrical cable in a warehouse. He threads it through the gap between floor and chassis, pulls it tight, trims the excess, and stands up to check the work with the back of his hand. Then he nods at the engineer beside him. Neither of them speaks. I am forty metres away, on the grandstand above the pit lane, and I am thinking something very simple: in this sport, speed is sometimes held together by the cheapest materials available.\n\nThe second practice session of the Azerbaijan Grand Prix has just ended. On the timing board, a line reads like a statement: George Russell, 1:43.347. Beneath him is his young team-mate Kimi Antonelli at 1:43.899. Mercedes take a one-two. It is a beautiful result, the kind that gets headlines capitalised. But I have sat in these stands long enough to know the timing board never tells the whole story. It only tells the part people want to hear. The rest — the more interesting part — lives elsewhere: in the whine of a hydraulic line, in the smell of burning rear brakes, in a zip tie under the floor of a racing car.\n\nThe Baku City Circuit runs 6.003 kilometres, with twenty corners and a straight along the Caspian shore that stretches nearly 2.2 kilometres. It is one of the strangest venues on the calendar: part street circuit, part motorway, part trap. In the old town the walls sit metres apart. On the shore straight the cars run above three hundred kilometres an hour with sea wind pushing sideways.\n\nSuch a circuit forgives nobody. It demands absolute precision in the first half and absolute courage in the second. It also demands something rarely mentioned: durability. That is why I want to start with the zip tie rather than with 1:43.347. A match is a broken mirror, each shard reflecting a different fate. A practice session is the same. The brightest shard today belongs to Mercedes. But there are darker shards scattered around the circuit, and if you only look at the brightest one you miss the whole picture.\n\nStart with the dark shards. Carlos Sainz brought his Williams back to the garage with fire coming from the rear brake system — the most striking image of the afternoon. Williams had arrived with their biggest upgrade package in years, and it had barely turned a wheel before it burned. Isack Hadjar, returning after three races out with a wrist injury, managed only limited running because of an engine issue. Oliver Bearman stopped on track with an engine cut-out. Fernando Alonso was reported with a suspected oil leak. Max Verstappen, third fastest in FP2, complained over radio that his car was handling poorly. Antonelli lost almost the whole of FP1 to a hydraulic failure. Arvid Lindblad hit the wall hard and brought out a red flag. Two Virtual Safety Car deployments in a single day.\n\nThat is the list of what happened in roughly three hours. It is also why I do not believe headlines claiming Mercedes hold a large advantage. A large advantage is a manner of speaking. It is neat, it is short, it is easy to read. But it does not measure fragility, and fragility is what governs this weekend in Baku.\n\nAcross three practice sessions, the only stable thing was how fast the circuit was changing. Everyone knows this, few say it out loud: Baku is a street track, and street tracks clean up over time. Every lap lays rubber, every lap sweeps dust. By evening the track can be more than a second faster than in the morning. That means any time comparison between sessions carries a flaw. If Team A runs while the track is dirty and Team B runs once it has rubbered in, the gap between them does not reflect the true gap between the cars.\n\nSo when someone says Mercedes are a second faster than Ferrari, I want one more question: faster by a second, when, on which compound, with how much fuel aboard? Not to be pedantic, but to keep the conversation honest.\n\nIn FP2, Russell set 1:43.347 — the only lap of the day under 1:43.5. It was a qualifying simulation: light fuel, fresh softs, engine in its strongest mode. Antonelli managed 1:43.899, about half a second adrift of his team-mate. Verstappen managed 1:44.492 on the medium compound. Subtract one from the other and you get roughly 1.145 seconds — but that is not the real gap, because the compounds differ. At Baku, mediums are around seven tenths a lap slower than softs in qualifying simulation conditions.\n\nStrip out the compound effect and the true gap between Russell and Verstappen is around four tenths. Four tenths, against a driver like Verstappen, in a Red Bull he is still complaining about, is significant but not decisive. I have written about football long enough to know one thing about numbers: they only mean something when you know the conditions that produced them. Four tenths in FP2 does not say Mercedes will win. It says that for one hour of one Friday afternoon in Baku, two Mercedes found a way to be faster than everyone else. Tomorrow the conditions change. The track gets cleaner. The temperature shifts. The fuel load rises. And the Mercedes engine may still be running.\n\nKimi Antonelli is the driver who interested me most today, and not because of his fastest lap. I noticed him because of something very small on the radio. He reported a hydraulic problem. He did not shout. He did not swear. He was calm enough that it sounded like a technical note rather than a driver who had just lost half a day of running.\n\nI have written about players who sit on the bench for ninety minutes and never get on. Antonelli's FP1 today was a half that got cut short. He had a fast car, a fast team-mate, and an afternoon drifting past while he sat in the garage watching others run. Then in FP2 he finished second. That is the kind of response I look for from the grandstand — not an explosion, but a quiet return.\n\nFor Mercedes, this is a good sign. Their car appears to have a wide operating window at this type of circuit: still quick despite limited running, despite thin setup data, despite a disrupted morning. A car that is only fast when you have three days to refine it is an ordinary fast car. A car that is still fast after losing half a day of data is a frightening one. But here, the fear has a limit. In this sport, pace and reliability are two different horses. You can ride one brilliantly and fall off the other. And all afternoon, the reliability horse threw a lot of people.\n\nSix mechanical incidents. Six is a worrying number. A hydraulic failure on Antonelli's car. A rear brake fire on Sainz's. An engine problem on Hadjar's. An engine cut-out on Bearman's. A suspected oil leak on Alonso's. And handling complaints from Verstappen, which is not quite an incident but is a signal. Six in one day, not six in one season.\n\nSitting in enough garages at enough circuits teaches you one thing: when different teams hit faults on the same day, you question the circuit before you question the teams. Baku has two brutal characteristics. First, heavy braking zones, especially Turn 1 and Turn 15, where cars drop from above three hundred to under a hundred in barely a hundred metres. Second, track temperatures today high enough to push cooling systems to their limit. Brakes suffer most here. Pad temperatures can exceed eight hundred degrees Celsius; discs can glow orange as a car returns to the garage. A rear brake fire under such conditions is not absurd. It is close to inevitable for anyone running too many consecutive laps without letting the system cool.\n\nEngine failures are different. A modern hybrid power unit is so complex that people compare it to a Swiss watch spinning at twelve thousand revolutions a minute. When it breaks, the cause is rarely one component; it is the interaction between temperature, pressure and shift timing. That is why I call this afternoon an afternoon of fragility — not the fragility of one team, but of a whole generation of racing cars built to run at the absolute limit.\n\nMcLaren had the worst day overall, and they are the team that made me think most. In FP1, Lando Norris finished fourteenth — a result that does not reflect the car's true pace but does reflect one thing: this team has a problem. The problem is the floor. A floor is among the most important and most secretive parts of a modern racing car. It generates most of the downforce and is the most sensitive part to any change in ride height. When a floor breaks, you do not lose five per cent of performance. You lose an entire setup window.\n\nAnd when you have only hours before the next session, you do what you can. You reach for the zip tie. I do not say that to mock. I say it to point out a truth about this sport: behind every gleaming timing board are people solving very mundane problems inside very unreasonable windows. That zip tie may keep the floor from vibrating at three hundred kilometres an hour. It may not. Nobody knows for certain. That is the entire fragility of this sport, wrapped in two hand-spans of plastic.\n\nOscar Piastri also lost significant running. When both of your drivers fail to complete the planned programme, you have a problem bigger than pace: you have a data problem. No data means no setup. No setup means no pace. That is the trap McLaren are in, and it is a hard one to escape overnight.\n\nFerrari ended FP2 around a second off the pace. Charles Leclerc and Lewis Hamilton sat close to each other on the timesheet, both roughly a second down on Russell. A second at Baku is a big gap. But I want to read it carefully. First, Ferrari spent most of the session on mediums; at Baku the medium-to-soft delta over a short run can reach seven tenths. Second, Ferrari habitually run heavier in FP2, prioritising race pace over qualifying. Third, and most importantly, very few teams complete their intended programme in a session interrupted twice by Virtual Safety Car and once by a red flag. So when I read that Ferrari are a second back, I read it as: Ferrari have a second to find, and they do not yet know exactly where to look. That is a state any chief engineer has lived through, and it is not a comfortable one.\n\nFurther down the order, two stories stood out. Williams brought a major upgrade package to Baku, described as their most significant in several years — new aerodynamics, changes around the floor edges, details at the rear. Then Sainz brought the car back on fire. The coincidence of debuting an upgrade and hitting trouble on day one is not rare. Change the aerodynamics and you change the cooling airflow reaching the brakes. Change that airflow and brake temperatures change. Change brake temperatures and you can get fire. Every chief engineer knows this risk. It is called correlation risk: correlating wind-tunnel data with track data, and sometimes getting it wrong.\n\nThe second story is Audi, who also brought a series of upgrades but ended up mid-table, around fourteenth and fifteenth. For a team young in this sport's history, mid-table at a difficult circuit suggests the development programme is on the right path. I care more about teams like Williams and Audi than about Mercedes, for a simple reason: Mercedes have won so much that people forget leading is their normal state. For Williams and Audi, every tenth found is a long story. A player's youth is the only thing that cannot be contractually extended. A team's youth is the same, but inverted: it is the only thing money and time can buy more of.\n\nIsack Hadjar returned after three races out with a wrist injury. It is a small story but I want to tell it. Three races is a long time for a young driver. Others race, others accumulate data, others build relationships with their engineers. You sit outside and watch. Then you come back, eager, and your car develops an engine problem in the session you needed most. I have seen players return from injury and be substituted in the fifteenth minute. I have seen players train six weeks for one match and be sent off in the twentieth minute. Sport has a cruelty of its own, and it usually arrives on the day you least expect.\n\nArvid Lindblad hit the wall and caused a red flag. His car was heavily damaged. It is the kind of accident that makes people go quiet for a moment. He entered a corner hundreds of others had taken hundreds of times, and his speed carried him to where the tyres could no longer hold. Nobody wants to see a young driver hit the wall. But it is part of this sport and I will not sugar-coat it. What I will say is this: a young driver crashing at Baku loses nothing but a car and some time — unless the team badly needed data, in which case he loses something else: trust. Trust does not show on a timing board, but it is what drivers lose and find again throughout their careers.\n\nNow to the point I actually want to make. The headline from this afternoon in Baku reads: Mercedes take a large advantage over the chasing group. I think that headline is overstated. Four tenths is not a large advantage. It is a meaningful advantage. There is a gap between those two concepts, and the gap matters. In this sport, a large advantage is when you can run a lower engine mode and still lead. A large advantage is when you can run mediums and still be quicker than those on softs. A large advantage is when your rivals cannot work out where your pace comes from. Mercedes were not in that state today. They were in a state of being better than the rest, at a circuit where they traditionally go well, on an afternoon when several rivals were disrupted. That is an advantage, but it is built on soft ground.\n\nAnd I have a specific reason to think so: Mercedes themselves. In recent seasons, Mercedes have repeatedly shone in practice and failed to shine in the race. That is not a criticism. It is a pattern anyone tracking this team over time would recognise. A car that is quick only on light fuel is an unresolved car. Tomorrow will tell us whether it has been resolved.\n\nThe second blind spot is track evolution, and I raise it not to complicate matters but because it changes how every number today should be read. Baku starts the day dirty, with dust and old rubber. Every hour lays fresh rubber and raises grip. By evening, a lap can be more than a second faster than at dawn. Which means a 1:44 early in a session can be better than a 1:43.8 late in the same session. That is the paradox of practice, and it is why I never fully trust a Friday timesheet. Some teams run their qualifying simulation early, on a slow track; others run late, on a fast one. Comparing them directly is comparing two different things.\n\nThe third blind spot is McLaren. When a team has a floor failure, when a driver finishes fourteenth, when both drivers lose track time, people write that the team is in crisis. Possibly true. Possibly not. What I know for certain is this: a team that loses running is usually faster than the timing board suggests. They lack the data to refine setup, but they do not necessarily lose the car's baseline pace. McLaren have had a fast car for several races. A bad Friday does not erase that foundation. If they fix the floor overnight — and if the fix does not cost them a major setup change — they can return on Saturday. That is what I will watch when FP3 begins.\n\nI want to end with something small. As the teams prepared to leave the circuit at the end of the day, I watched a group of cleaners walking along the barriers. They were collecting scraps of plastic and pieces of rubber left behind by the laps. They moved slowly, one zone each, nobody talking. It is work nobody writes about. There is no timing board for the people who clean the track. And I thought, as I always think in any grandstand: this sport is only beautiful when you look at it from the right distance. Too close, and you see only money and engines. Too far, and you see only numbers. At just the right distance, you see the people tightening zip ties under a car so that a driver can go faster tomorrow.\n\nFriday afternoon in Baku closed with Mercedes on top. That is a fact. But the more interesting fact is what was happening behind it. Six mechanical incidents. One plastic zip tie. One young driver back from injury and unable to run. Another who hit the wall. A circuit changing under the teams' feet by the minute. The pitch is never silent — only the person who sits still to listen. Asphalt is the same. And if tomorrow answers with a different result, we will remember that this Friday afternoon was never a promise. It was only a question, asked at the right moment. The most interesting thing about Saturday is not whether Mercedes keep their pace. It is whether Baku still forgives cars repaired overnight.