According to the book, McLaughlin would rather make a future move to The States than stay in Supercars and rack up titles like Whincup has, a position strengthened by his personal ties to America through fiancee Karly Paone, who comes from New York.
"I'm asked a lot about America and my NASCAR ambitions," McLaughlin wrote.
"Obviously with an American fiancee it's something that is a serious factor, and Karly would like to move back to be with her family one day.
"But for now I have to keep kicking goals here. I know if I continue to do a good job the spoils will come.
"I have massive respect for what Jamie Whincup has achieved with his seven championships, but I'm not sure I could keep doing what he's doing, year after year.
"If I was able to tick off a championship and a Bathurst win in the next half-dozen years or so I would consider doing something else. If the opportunity came up to try something Stateside I'd jump at it.
"And NASCAR is the obvious goal.
"NASCAR is a dream of mine and Roger Penske and the team know that."
As Motorsport.com exclusively reported last month, the famous American team owner is well-aware of McLaughlin's NASCAR plans – and says winning last year's Supercars title was a step towards making a US move a reality.
The Kiwi had his first taste of NASCAR hardware on the Gold Coast last year, sampling an ex-Joey Logano Fusion in a series of demo runs.
Road to Redemption, currently on sale, is a tell-all insight into McLaughlin's 2018 season, charting the fall-out of his disastrous weekend in Newcastle in 2017 through to his title-winning triumph at the same circuit 12 months later.