Can F1's new cars survive Shanghai's straight? Chinese GP briefing

Formula 1 2026 kicked off in Australia, leaving drivers and fans with a bittersweet taste as the new rules polarised opinion from the very first lap.

Next comes China, and with it perhaps a truer test of what the racing in the new era actually looks like on a circuit where energy requirements are set to be completely different to Melbourne.

To make matters even more intense, Shanghai will host the first sprint weekend of the year, which should contribute to the unpredictability as teams continue to figure out how to best deal with the demands of the new cars.

One practice session to find answers before competitive running begins — on a circuit that has historically punished those who arrive underprepared.

With championship standings still embryonic and the technical picture far from settled, Shanghai may well tell us more about the next few years of Formula 1 than Melbourne ever could.

What to watch out for

While the Australian Grand Prix saw the introduction of Formula 1’s new rules to the world, China this weekend is set to be a much closer examination of what the regulations actually look like on what is, on paper, a much more favourable venue for them.

Albert Park was always going to expose the main traits of the new rules, as the nature of the circuit gave the power units a tricky balance between energy harvesting and deployment opportunities.

The first race weekend of 2026 left no one indifferent about what the new Formula 1 looks like. Some enjoyed it and believe the rules deserve more time before they are judged; others hated it and reckon F1 is already ruined.

China, however, should look more like the races we’ve seen in previous seasons.

The Shanghai circuit features one of the longest straights on the calendar — a 0.7-mile (1.2km) stretch between Turns 13 and 14 — where cars exceed 200mph (320km/h) before arriving at one of the F1’s most demanding heavy braking zones.

For the new cars, that combination could be both a gift and a dilemma.

Battery management

The power delivery offered by the upgraded MGU-K produces fast acceleration out of corners, but the limited battery capacity means it will be incredibly easy to deplete all electrical energy before the end of the straight.

A 0.75 mile flat-out blast is a long way to sustain nearly 350 kilowatts of electrical output.

That should translate into far less random overtaking than in Australia, where the lack of straights led to very different strategies to complete a lap and, with that, a record number of passes anywhere on track.

In China, much of the action is likely to be focused on the main straight, where drivers will be looking for maximum speed, while also keeping an eye on conserving some battery energy for the pit straight three corners later, where attacking cars (within 1sec of a car in front) will get a power boost from overtake mode.

Energy harvesting is expected to be easier than in Australia, thanks to several heavy braking zones, which should reduce the need to artificially generate electricity through lift-and-coasting, which can create large speed differentials. As a result, teams will be able to recover the maximum 9MJ of energy per lap in Shanghai, compared with 7MJ in Australia.

That said, some teams may experiment to see whether it’s worth losing time by reducing electrical deployment on the straight to use it elsewhere in the lap.

Sprint weekend

But the weekend will have another layer of complication, as China marks the first sprint of 2026 and the format throws a particularly sharp spanner into proceedings.

The 19-lap race on Saturday means teams will have to extract maximum understanding from just a single practice session on Friday morning before competitive action begins with sprint qualifying on Friday afternoon. It’s no small feat given the complexity of the new mechanisms.

The sprint’s short duration adds further intrigue: at 19 laps, drivers won’t have the luxury of developing their battery management over a full race distance.

Several drivers have already warned about the risks of significant speed differentials between cars on different energy levels, with closing speeds of up to 30mph (50km/h) possible — a concern that becomes even more acute on a straight of Shanghai’s length, where a mistimed deployment could have consequences.

F1 bosses and teams are set to discuss possible rule changes after this weekend in China, and energy management levels are squarely in the crosshairs, meaning that Shanghai is the first proper verdict on whether the new rules work across genuinely varied circuit conditions.

Who’s under pressure: McLaren

Twelve months ago, McLaren arrived in Shanghai as the team to beat, and so it proved, as Oscar Piastri led a commanding 1-2 ahead of Lando Norris, who had won the season-opener in Australia.

Now the Woking squad heads to China as a team with serious questions to answer.

In Melbourne, reigning world champion Norris finished 51 seconds behind race winner George Russell, while Piastri was unable to start the race after a crash on his way to the grid — a freakish incident, but one that left McLaren with less data, not to mention fewer points than it needed from the opening weekend.

The scale of the deficit to Mercedes was alarming enough in itself, but so was what followed after the race.

Andrea Stella revealed that discussions with Mercedes High Performance Powertrains about receiving more information about its customer power unit had been “going on for weeks,” because even during testing, McLaren was essentially going out on track, collecting data, and reacting to what it found.

As Stella put it bluntly, “That’s not how you work in Formula 1.”

It was a suggestion that in a championship built on simulation and prediction, McLaren had been operating blind compared to its engine partner.

The frustration appeared to cut deeper than a single bad weekend, as Stella admitted this is the first time McLaren has felt on the back foot as a Mercedes customer team — not just in performance, but in its fundamental ability to predict and improve its car.

GPS data showed time being lost on the straights despite sharing the same power unit, a puzzle that, on Shanghai’s kilometre-long back straight, threatens to become even more visible.

Stella insists there is “a lot of laptime available” once the exploitation of the power unit is properly understood, and Shanghai will test whether that optimism is well-founded or whether McLaren’s title defence is already on the ropes.

Historical highlight: Button gatecrashes Red Bull

Shanghai has produced its share of grand narratives over the years, but occasionally the circuit offers something altogether more human.

During the 2011 Chinese GP, Jenson Button was leading when he came in for his first stop on lap 14. With Sebastian Vettel close behind, the timing was delicate and the pressure was on.

Rather than homing in on his own McLaren crew, Button turned in prematurely and found himself surrounded by Red Bull mechanics, who quickly shooed the illegal parker on his way.

Button’s explanation afterwards was surprisingly candid. “I came into the pits and I was looking down and I flicked a switch which I thought was the right one, which we always do before a pitstop.

“As I was driving in, I realised ‘Oh my God, it’s not actually the right switch’. I’d flicked the wrong one. So I turned that one off and turned the right one on. And as I look up I am there (in the pits) already.

“So I drive in thinking it’s the right stop and it’s not. So they waved me on…”

McLaren principal Martin Whitmarsh was generous in his assessment: “I’m sure it was fairly comical, but he doesn’t make very many mistakes.”

Button, for his part, was philosophical. The detour cost him roughly two seconds. His team-mate Lewis Hamilton went on to win the race regardless.

Pirelli form guide: Chinese GP