Mercedes launch 2019 car
"2018 was a great year, but I feel like 2019 can be even better," says Hamilton; "I'm going to go all in this year," vows Bottas
Mercedes have revealed the new car, the W10, ahead of the F1 2019 season as they bid to maintain their long reign as the sport's dominant power.
Undefeated in a title fight since the start of F1's current turbo-hybrid era, Mercedes start the new year with one aim - becoming the first team in F1 history to win six consecutive drivers' and constructors' championship doubles.
The W10 was given an immediate on-track debut, with Bottas behind the wheel of the new Silver Arrows on Wednesday morning during a 'shakedown' run at Silverstone.
Hamilton 'ready to attack' in 2019
Lewis Hamilton, the reigning drivers' champion, begins a new two-year contract at the team as he aims to become just the second driver in history to win six world titles.
"2018 was a great year, but I feel like 2019 can be even better. I want to achieve more, I want to continue to keep pushing. I feel energised and I'm ready to attack," said Hamilton.
"The buzz really starts at the beginning of the year when you see the car coming together. And then you get to the shakedown and you get into the car - it just never gets old."
Valtteri Bottas stays on to partner the Englishman for a third season, but is not yet secure beyond 2019, with the Finn keen to rebound from a disappointing 2018 when he failed to win a race.
"I'm going to go all in this year," said Bottas. "There was quite a bit of criticism at some stages of 2018, but that's actually been a positive thing for me because it's given me an extra boost!"
Hamilton delivered all of Mercedes' 11 race victories last year, with the 34-year-old credited with making the difference in the team's title fight with Ferrari.
"We have to start from scratch, we need to prove ourselves again," said team boss Toto Wolff. "There's absolutely no feeling of entitlement to be at the front. In fact, with the regulation change for the new season, every team can have a shot at the title and we're seeing all of them as a potential threat."
Mercedes backing for Hamilton and Bottas
World champion in four of the last five seasons, Hamilton took a complete break from F1 over the winter break.
"Lewis spent some time travelling," said Wolff. "When we met after the winter break, he was refreshed; he's extremely hungry and wants to start racing again."
The Mercedes chief also gave his backing to Bottas after a difficult 2018 campaign in which the Finn struggled to keep pace with his team-mate.
"He has been able to fully reset after a season that was not always easy for him. Valtteri knows he has the full backing of the team to succeed and he's excited to get back in the car and show his critics what he can do," said Wolff. "I'm really looking forward to a strong competition between the two of them, racing each other hard and fighting hard against our rivals."
Mercedes have appointed Esteban Ocon as their reserve driver for 2019.