The 22-year-old may have enjoyed seven pole positions and two race wins but things haven’t always been straightforward for one of the sport’s most exciting prospects.
Most recently the pair collided at the Brazilian GP, making contact which ruled both drivers out of the race.
“I have always been like this, I think Seb [Vettel] has always been like this,” Leclerc told CNN Sport’s Amanda Davies, ahead of the season’s final race in Abu Dhabi.
“Whenever we have our racing helmets on, we are not friends. I haven’t got any friends on the track when I have my helmet on but whenever I take it off, I am a normal person at the end.”
‘We need to work together’
After promising preparation to the season, Ferrari quickly found itself managing a tricky relationship between both of its drivers.
Leclerc served as a serious threat to Vettel’s position at Ferrari and the four-time world champion never seemed comfortable with the internal politics.
The pair have spoken since the collision in Brazil and analyzed the incident with the team, agreeing to give each other more of a “margin” in the future.
“We need to work together for the team. Both of us understand that and that’s why we are also getting on well outside of the car,” he added.
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‘I did not expect it’
However, Leclerc said he was surprised by how competitive he’s been in his maiden year with Ferrari and has been encouraged by the second half of the season.
“I am extremely happy about the progress I have made and how the team also progressed from the first race to the last race,” he said.
“As a driver, you always want more so I was not very satisfied with the way everything was going but with the second half, I am very happy.
“I did not expect to have, at the end of my first season, seven poles and two wins. This is crazy. I did not expect it.”
The Formula One calendar comes to its conclusion this weekend with drivers lining up for the Abu Dhabi GP.