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    INSIGHT: Your Singapore Grand Prix Questions Answered Chief Strategist James Vowl...

Chief Strategist James Vowles answers your questions from the Singapore Grand Prix

Race Summary

"What another incredible Grand Prix! The Safety Car came out early on when Esteban [Ocon] tried to go for a move around the outside of his team-mate but got squeezed against the wall and his car had to be recovered.

"From then onwards, after the re-start, you would have seen Lewis managing his pace on those delicate HyperSoft tyres and then slowly pulling away, with the Ferrari and the Red Bull following him.

"Vettel went for the aggressive undercut on Lap 14, opening the sequence of stops and taking the UltraSoft tyre. He wasn't able to make it - he got caught up with Pérez on the out-lap and Lewis was able to cover one lap later, taking the soft tyre.

"Verstappen followed several laps later and there was an incredible moment where both Verstappen and Vettel were going round Turn 2 together.

"Valtteri was on a very similar programme, defending his position to Kimi. From then onwards the drivers were managing the cars on a knife-edge.

"It's an extremely difficult track and they had to take those tyres a long, long way - all of them doing the job that they needed to do and, in the end, Lewis walking away with the victory."

Ming (mingxian2393) on Instagram

What made the team decide to put Lewis & Valtteri on the UltraSoft tyres in Q1 as opposed to the HyperSoft tyres? Isn't it a little bit risky in Singapore?

"There's a finite allocation of tyres available to you in Qualifying. In our case - and that of Red Bull and Ferrari - we only had four sets of the HyperSoft available.

"It's an incredibly precious commodity - a very fast tyre - and, really, on a track that's all about "Qualifying, you want to make sure that you maximise them all in a row.

"That typically means two runs in Q2, one after the other and two runs in Q3, one after the other. So, you have to run an UltraSoft somewhere.

"In the case of Ferrari, they tried to run it in Q2 and qualify on it - but even if they hadn't done that, it meant that they could use the improving track and run the HyperSoft towards the end of it.

"In our case, we ran it in Q1. We were aware that there were some risks - it was closer than we had expected it to be. But, ultimately, both drivers made it through and it allowed them, from then onwards, to run a very good programme on the HyperSofts."

Silver (@Elsilver_) on Twitter

How key was Lewis' first stint to the strategy?

"That first stint was really the reason that Lewis walked away with an incredible victory. He drove it perfectly. He started with a lot of management, setting reasonably slow lap times to start, making sure there was always traffic in what we call the 'Pit Window' so cars behind just couldn't stop.

"Then, he built the pace up very gradually and was able to pull away from the leaders behind. What it meant was, by the time we got to Lap 14, Whilst Vettel could stop, he still had a little bit of traffic there.

"Lewis' tyres were in a fantastic condition and he could just nail in the purple sectors - the fastest lap times - and come in just one lap later in a really good state relative to Vettel."

Usman [@usmanA23] on Twitter Would you have Pitted Lewis in case of a Safety Car after the first pit stops or were his tyres good enough to ward off any challenge from drivers on fresher rubber?

"Without question, the Soft tyre would have provided a little more protection than, say, Vettel's UltraSoft. But, ultimately, a car on brand new HyperSofts at the end of the race probably would have had the performance to get through.

"There's a little bit of evidence of that. Magnussen, for example, set the fastest lap of the race - a 1min 41sec, so quite a bit faster than the pace Lewis was running at. Now, it's difficult to overtake at Singapore - but a very heavily worn Soft tyre would probably not have stood a chance.

"So, to answer your question, it depends on what lap we look at. But it's highly likely that we would have stopped Lewis towards the end of the race and fitted fresh HyperSoft Tyres - even at the cost of boxing out of the lead of the race."

Chen (@CaydenChen) on Twitter

It was drizzling for a moment - were you guys about to swap to the wet tyres?

"So, let's answer those points individually. Was it raining? We're not sure. There was a little bit of light drizzle - and I really do mean a little bit - in the pit lane.

"Looking at the TV images, you would have said it was almost a waterfall. Maybe it actually was a waterfall. There was nowhere near a sufficient amount of rain to cause a concern, though. There was nothing appearing on the radar.

"But, irrespective, to answer the second part of that, we always have both Intermediate tyres and Extreme Wet tyres available and we can make a call for the car to come in within seconds and have either one of those specifications fitted.

"As it turned out in Singapore, it really was just a mild amount of spray and it disappeared very, very quickly."

Kate (kate.baldi) on Instagram

Why did Valtteri have such trouble getting past Hülkenberg?

"Hülkenberg was a backmarker car. He'd already been lapped by the leaders, he was one lap down and he wasn't directly racing Valtteri. He wasn't racing any cars in front of him either.

"The way the rules work in Formula One, you need to get about a second behind the car in front in order for the blue flag system to trigger. A blue flag would be indicated in this case to Hülkenberg, who would have had to concede the position and let Valtteri through.

"Valtteri was really struggling to get that close to the car in front for a sustained period of time. Singapore is one of the more difficult tracks. There's a long section of corners where it's very difficult to sustain that distance without hurting your tyres for a dramatic period of time.

"Valtteri was very much trying to get in front of him while not losing position to Räikkönen behind. It was a very fine balance. In the end, we were just unable to sustain that distance behind Hülkenberg and Valtteri was able to hold the position against Räikkönen, so he held station there."

Jon (@JLawlor05) on Twitter

How difficult is it to keep the Power Unit cool in such a hot race?

"So, the ambient temperature was around 29-30°C in most sessions at Singapore. It's fortunate that it's a night race.

"The track temperature was around 32-34°C - something in that ballpark - and in reality we actually run at far hotter temperatures elsewhere. For example, Bahrain during the day, when we run in FP1 and FP3.

"So it's not so much that the temperatures are extreme - what makes it very difficult for a human is the very high level of humidity, which doesn't affect the car as much.

"What really causes the issue in Singapore, though, is that you're all following each other in traffic. You're near enough always in the situation where you've got cars in front of you disrupting the air flow.

"At somewhere like Monza you can pull left or pull right in order to get clean, fresh air into your radiators - but that's just simply not as easy to do in Singapore and that's what causes the difficulty.

What we have is a range of bodywork options that allow more or less cooling to go into the radiators at the cost of some performance and you just tune what you need to get through the race."

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