“My focus was just on myself, because I didn’t really expect to have any kind of battle, to be honest,” he said. “Honestly, I just expected how the first stint played out, to just drop off if I would just stick to my own pace, and that’s what I did.
“But yeah, a bit positively surprised, I would say, in the second stint. It gives us a bit more hope, and probably a direction as well to look into.
“Of course, it’s still not where we want to be, if you compare it to McLaren especially. But at least we were a bit more competitive in I would say a difficult weekend.”
Verstappen himself had no answers as to why the car suddenly worked so well in that second stint. He played down suggestions that cooler temperatures or the fuel load going down were key factors.
“It’s a good question. It’s a few things that might be the case. But I prefer to first look with the team into that, before we draw any conclusions.
Verstappen is eight points behind Lando Norris in the constructors’ championship
Red Bull
“It wasn’t that much cooler, a bit more overcast, but beginning of the race, I think it was very similar. So I don’t think it’s in the temperatures of the ambient or the track.
“I honestly don’t think it’s related to fuel per se. I might be wrong, but I don’t think so. The handling is exactly the same.
“It’s just I have more tyre grip, because before just nothing was responding, and at the end, at least there was more response. So that’s something that we need to understand.”
The Milton Keynes engineering team will spend the days before the next race in Japan looking for some answers.
Horner agreed that the way the car improved between stints in Shanghai provided some useful clues, and suggested that there is still some potential in the RB21.
RB21 performed better on the harder tyre
Red Bull
“There was obviously a significant difference,” the team boss explained. “On the medium, he came in the pits 18 seconds behind the race leader. By the end of the race, he was 16 seconds behind. And in the meantime, he caught both Ferraris and passed Charles Leclerc. So I think the car was in a better window on the harder tyre.”