It was announced on Tuesday afternoon that the Tasmanian-born driver had requested to be ''temporarily relieved'' as the driver of the number 17 DJR Team Penske Ford.

Scott Pye will slot into the vacated driver's seat.

Ambrose cited a need for "more experience".

Team owner Roger Penske said he appreciated the effort that Ambrose had put into the first two meets of the season.

 “Following the Australian Grand Prix, Marcos came to the team, requesting to be replaced from his upcoming driving responsibilities, while he continues the transition back into V8 Supercars competition," Penske said.

''Entering the season, Marcos understood that the competition in this series is at a very high level and now realizes that more time is required for this transition.

''This was a difficult decision for Marcos but I appreciate him thinking about the greater good of the team.

''Marcos will continue to support the team and our partners including competing in the Endurance Series Races.''

Ambrose said he remained ''fully committed'' to his team.

''Although this is a decision which has been hard to make, it has become clear to me over the first two events of the season that I need more experience in these cars to do what is required of the lead driver and to be competitive for the team and our partner,'' Ambrose said.

''This decision to step aside from the lead driver role at DJR Team Penske is completely my decision.

''Although this decision may disappoint fans of whom I apologize to, I will continue be a great teammate and will be at the track to support the team in Tasmania.

''I look forward to getting back on the track later this season and will be ready to do my best for DJR Team Penske.''

Ambrose stands at position 12 in the V8 Supercars Championships.

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