Before his Supercars career gained momentum, Kostecki chased a career Stateside.
A teenage Kostecki took on the NASCAR K&N Pro Series in 2013 after reaping results in the USAC Ford Focus Series.
There, he won three national championships and scored 27 victories.
Kostecki competing Stateside in 2013
He would return home and pursue a career in Australia, and was handed a full-time Supercars contract by Erebus.
While the NASCAR dream is on hold, the 23-year-old was looking forward to driving a NASCAR in the virtual world.
“NASCAR was definitely the path I wanted to go down, it was something I always wanted to do as a kid,” Kostecki said.
“I raced in the K&N Pro Series, I only had one full time year and it was a bit up and down but I was able to capture a couple of poles and get a top five in my last event which was pretty cool.
Kostecki's NASCAR-inspired Eseries livery
“I definitely learnt a lot in the series and it’s pretty cool to be racing in a NASCAR again, even if it’s just on the sim.”
Kostecki’s main game Erebus Supercar is backed by Boost Mobile, which is also no stranger to NASCAR.
Back in 2011 and 2012, Boost Mobile backed 17-times X Games medalist Travis Pastrana.
Across the two years, Pastrana steered the #99 Boost Mobile NASCAR - the same number Kostecki competes with in Supercars - in the Toyota All-Star Showdown, K&N Pro Series and Nationwide Series.
Pastrana carried Boost Mobile colours a decade ago
Kostecki’s NASCAR-inspired scheme was designed by fan and avid sim-racer Paul Mansell.
There’s a fair chance Kostecki could drive the livery to victory, considering his strong performances at Charlotte and Pocono.