Red Bull dominated a bizarre second practice session at the Mexican Grand Prix, Lewis Lewis Hamilton was only seventh  Max Verstappen was 0.153 seconds ahead of Daniel Ricciardo, followed by Renaults Carlos Sainz, 1.233s behind.
Hamilton has to finish seventh to clinch a fifth world title, and if Vettel does not win the race, the Brit will be
Mercedes and Ferrari do not seem to have got their cars to work on Friday.
Many of the teams struggled to get the most out of the fastest hyper-soft tires and the two Red Bulls were out of the field for more than a second.
The gap between the Red Bulls and Sainz, and between the Spaniard and other midfielders behind them, was about normal.
But Hamilton was the fastest Mercedes driver, 1
Vettel said, "I'd be pretty happy if I had more grip." It's kind of expected that Red Bull is very strong. I do not think we had a clean lap. We should have been ahead of the Renaults. "
" Everybody is on the border with hoops and trying to get them to work to less slipping, with the possible exception of the Red Bulls.
Vettel added that Ferrari had decided to stay with their old aerodynamic package after comparing it to one new in the first session.
Verstappen was fastest in the first session, again by Ricciardo, and This time around 0.483 sec.
But what looked like a very good day for Red Bull got a bit sour at the end of the session when the Dutchman ended up with a technical problem on the main straight.
Verstappen said: " We have a good car, good downforce and good mechanical support. Unfortunately, our day ended with a hydraulic problem, but otherwise our day was really good.
Red Bull team boss Christian Horner said: "Both cars were fast in both sessions, which is encouraging. Looks like we have a hydraulic problem [on Verstappen’s car] so we have to get the car back and see what's going on there.
Hamilton said, "The car was good in some places and not so good on others. It is not about a particular area; There are many different things that we can improve. It was difficult with the high track temperatures that melt and pellet the tires, but many people have experienced it.
Mercedes Engineering Director James Allison added that the team had to run its engines at a lower performance level because they were struggling with overheating "in a number of areas."
Tires and Red Bull could create exciting races
On Friday, his and Mercedes will be very worried about the performance – the tires have all kinds of tires the headache for the teams, especially the hyper-softs, who were good for about a flying lap before they did
This will give the teams a big headache if they want to find out how the weekend goes best 19659003] An older figure admitted that the session was "weird" and "a bit confusing"
This situation resulted in an unusual competitive order, with the Renaults of Sainz and Nico Hülkenberg in third and fifth place and Toro Rosso's Brendon Hartley Sixth ahead of Hamilton
The unusually high position for the Red Bulls and the factory team of the Renault team is likely to be related to altitude.
Mexico City lies at 2,200 meters and all engines lose about 22 percent of their power. But because it's a proportional loss, the less powerful engines lose less absolute power, which reduces the performance gaps between the standard-fit Mercedes and Ferrari engines and the Renaults and Hondas.