However, he does in fact have the right to leave early if he lands an opportunity in another category.
A team spokesperson advised Speedcafe, “We signed a multi-year deal with Shane which includes clauses should he decide to move to another category.
In an interview which is set to play in full on the television broadcast later today, van Gisbergen spoke on his renewal.
“It was pretty awesome, like, easy chats with Jamie [Whincup, Team Principal],” he said.
“Obviously, there's attractions and grass is greener at the moment to have a look at new challenges and, yeah, had some good chats with some people [who are] outside of the sport now, I guess.
“Yeah, it was good, so at least one more year here, which is cool.”
Asked to clarify then if he had signed a one-year extension, the New Zealander's response began with, “Oh, yeah… contracts.”
Should it come to pass, it appears the drive would be in Trackhouse Racing's ‘Project91' entry which is earmarked for drivers from foreign countries/disciplines such as world drivers' champion Kimi Raikkonen, who now has two races under his belt in the #91 Chevrolet.
The Cup Series heads to Sonoma on the weekend of Sunday, June 11 and Chicago for a first ever street race on July 2, both of which fall a week before Supercars Championship events at Hidden Valley and Townsville.
He won Race 7 on the afternoon prior, but that outcome is subject to a protest from Erebus Motorsport after contact between he and Brodie Kostecki during a decisive, penultimate-lap pass.