"He really is such a big influence for me and the team," he reveals. "Toto and I have a really special relationship, actually. It's not always been perfect but he has really been such a visionary within the team.
"We have had some ups and downs but you can see how much passion he has. Toto is usually so chilled but he has so much fire in him, and you need that in your bosses. He's also done some racing so he has a bit of an idea of the pressures we are under, but then on the business and political side of things he's top notch."
Later in the season, F1's trip to the Marina Bay Street Circuit produced one of the most exciting races in recent years, and it was Lewis who - to everyone's surprise - emerged from it at the top of the podium: "It was crazy because I had taken the lead of the Championship and we arrived there, knowing it would be our Achilles heel. We knew that we were going to struggle as we had done in previous years - but it was a new car, so maybe it would be less of an issue.
"It turns out, we weren't quick enough. So, I'm fifth, knowing it's hard to overtake on that track. Maybe through strategy, I could get ahead, but I remember walking into the office and saying 'guys, we need rain'. It never rains for the race in Singapore - but then, it did. I got a great start and was convinced I was going to 'do a Senna' and overtake everyone on the first lap. I knew exactly where I was going to put the car, what lines I was going to take everywhere and go that little bit further than the others. We had some great drivers ahead so maybe it wouldn't have gone that way but that was the crazy thought process I had."