'I've never been so confident in my team and I've never felt so empowered by the things I've learnt about what we're facing.
Hamilton joined Mercedes in 2013, after six seasons with McLaren.
"Now we have to find out how we've been working compared to the others, but I think that even if we can still improve our lap time, the vehicle is fine".
"I know the track well here, I know the people that work for it and they are working very hard for the event to get people coming here and it's tough for them to actually make some money", he said.
Hamilton will be nearing his 36th birthday at the conclusion of his latest contract and he has made no secret of his desire to forge a career in fashion or music.
With the extension, Hamilton could be in the hunt to match Michael Schumacher's seven world titles.
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After a series of attack on PM Narendra Modi and his government, Rahul Gandhi walked up to PM Modi and gave him a hug. Gandhi accused the Modi government of buying 36 Rafael fighter aircraft from France at a highly inflated price.
The country's grand prix once drew huge crowds, a lot of them there to cheer on seven times world champion Michael Schumacher against a backdrop of campfires, vast quantities of beer and sausages.
Asked if it was therefore possible that his new deal might be the last he signs in F1 before retiring, Hamilton said: "It's impossible to say what I'm going to feel like in two years' time".
In his time with the team starting in 2014, Hamilton has won the Drivers' Championship three times and is in the hunt for the same honor yet again this season.
Mercedes has provisionally confirmed its driver line-up until the end of 2020, the point at which a number of bilateral agreements between the teams and Formula 1 run out, with only Renault committed to the sport beyond that stage.
The' announcement comes before the team's home race in Germany, with Hamilton trailing Sebastian Vettel in the championship by eight points. "This year, with a full winter of preparation, I have been able to make a good step forward - and I believe that there is still more to come", commented Bottas. "His relentless drive for self-improvement, his emotional intelligence as a team member and his loyalty to those around him".
"Mercedes has become Lewis' home in Formula 1 and his story is linked forever with the silver and green of Mercedes-AMG", he added. "I can't wait to see what we can achieve together in the next two-and-a-half seasons".