"This is long-term, rest-of-life changes I am making in my life," said Hamilton.
"Undoubtedly it is difficult because you have people who are like 'Yeah, but you race a Formula 1 car every weekend'.
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"I think ultimately, some of it is education because not everyone knows what footprint our sport has and what we are currently doing to try and improve that.
"But what I have tried to say is that I am making a lot of changes in my personal life. I don't drive any of the cars I own any more."
So proud to finally announce @teamx44⚡️ Team X44 will be joining the @extremeelive series and I’m really excited to share this project with you. It will be fun to have a different role from being the team driver. /1 pic.twitter.com/wWY5svinGg
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