Verstappen made the step up from Toro Rosso to Red Bull in 2016 where he went on to win in his debut race in Spain, the two have worked together from that year.
That partnership has since helped the Dutchman finish on the podium 31 times, including eight wins, while finishing 2019 as the third best driver.
The 22-year old says that clear communication between the two has been a big part of it.
“I think we are both very straightforward. We’re very honest,” he said to Motorsport.com.
“And we can say to each other when we do a bad job. I like that.
“And he’s also a guy who doesn’t talk too much. I don’t like someone who’s talking just to talk, giving me more messages – because for me, that is just not working.
And he’s exactly the same, so he likes that as well.
“So short, quick communication is for me the best and, over the years, you get to know each other as well. You spend a lot of time with each other. Sometimes I think he can just guess already what I was going to say.”