Hamilton: Pre-race set-up changes crucial
22 October 2017 – Mercedes' Lewis Hamilton believes set-up changes before the race were a big factor in securing victory at the United States Grand Prix.
Despite losing out at the start to title rival Sebastian Vettel, Hamilton took just a handful of laps to reclaim the race lead with a DRS-assisted pass heading to Turn 12.
After going on to secure his ninth win of the season, Hamilton commented that a complete change of wind direction affected the feel of the car.
"I had so much fun out there today, the track was completely different to how it was yesterday," said Hamilton.
"Yesterday you braked into Turn 1 with a head wind, halfway round, then the rear became light and you get wheelspin.
"Through the Esses was like, 'Wow', the best it's ever been. You get the headwind, so maximum downforce and you can really throw it around."
On the pre-race set-up changes, he said: "All I can say is we worked hard on trying to get a balance that worked for qualifying and the race.
"The couple of laps I did to the grid were the first time with this wind change and I had to make some big changes, [and we are] obviously only allowed to change wing and some differential settings
"I made these changes, and it made the car so good, so I'm happy with it."
Victory for Hamilton at the Circuit of the Americas means that he only needs a fifth place finish at the next race in Mexico to secure his fourth drivers' title.