I was surprised he said that, does he really want to call it a day? perhaps he does or is it more about Toto Wolf? whatever Toto Wolfs plans are it seems likely he will not be running the Merc F1 team on a day to day basis next year, it seemed to be a distinct change of line we have been getting, I must admit I have been a little suspicious of the lack of a new contract for a while and did wonder if he won the championship this year he might call it a day.
There are a lot Lewis detractors out there but for me it will be a sad loss to F1 and I doubt we will see a British Driver of his level again for a very long time and certainly not in my lifetime. People say he has the best car well that wasn't the case in 2008 or 2018 when Ferrari had a car good enough to win the championship, 2008 Lewis only won by a point over Massa, 2018 Vettel and Ferrari made mistakes Lewis and Merc didn't, as for the other championships you can only beat what your presented with and if the opposition don't do a good enough job there is not much you can do about, and you still have to beat your team mate of course.
Having said that Merc may find it tougher going forward with the budget cap and the 2022 rule changes so at the age of 35 with likely 7 championships maybe it is time to call it a day.