Scott McLaughlin will be going for a three peat in this year's Supercars championship.

Scott McLaughlin's boss says this will be the Kiwi driver's last season in Supercars.

On the eve of the new season DJR Team Penske co-owner Dick Johnson confirmed what most people anticipated, that McLaughlin will race full-time in America next year.

"It's pretty obvious that he will be gone next year," Johnson told the Daily Telegraph.

GETTY IMAGES Scott McLaughlin may only race in New Zealand once more in his career, at this year's Hampton Downs round of the Supercars.

"We've just got to make the most of him in this year's championship because he's obviously US-bound.

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"It definitely will be (his last year in Supercars) unless something unforeseen happens."

McLaughlin is in his final season with DJR Team Penske and and will make his debut for the American arm of Team Penske in an IndyCar at the GMR Grand Prix at the Indianapolis Motor Speedway in May.

McLaughlin has already spent time testing in the States in preparation for his IncyCar debut and has shown plenty of pace, being the third quickest in testing in Texas last week.

Johnson told the Daily Telegraph that McLaughlin has got what it takes to be a success in America.

"He has got a pretty good chance of it the way he has acquitted himself and bear in mind that he had never even put his backside in one of those cars before, it's pretty special," Johnson said.

"It is totally different, but when you can drive a motor car of any sort that's what a real driver is.

"He seems to be able to extract … different things out of a car that others can't."

With McLaughlin heading to the States, the Hampton Downs round of the Supercars season in April might be the last time he races in New Zealand for many years.