Although the two drivers compete against each other, they often train together and help each other with simulator practice.
The two will team up this weekend when they team up for the 12 hours of Bathurst race.
The two will be racing for the BMW team and will also have BMW factory driver Catsburg in the team.
"We all like sim racing. It's off-season and we've been on the sim a lot this winter", Catsburg told Motorsport.com.
"[Redline boss] Atze Kerkhof has been in the epicentre of all this. With that team, we have trained a lot together in the winter. And that has lead to this.
"We share a BMW Z4, just like you would in real life. So Max virtually gets out of the car and I get in, then I drive a couple of stints and then the rotation continues.
"I'm really looking forward to it, also because my participation in the real Bathurst 12 Hour only lasted an hour due to a problem with the oil pump!"