Grove himself is an accomplished racer, and has recorded numerous successes for his eponymous team, which launched in 2011.
The racing journeys of Grove and Heimgartner intertwined during their Porsche Carrera Cup days.
A teenage Heimgartner, who arrived in Australia as New Zealand's youngest-ever Formula Ford champion, made his Porsche Carrera Cup Australia debut in 2012 for Team Kiwi Racing.
That season also marked the debut in the series for Grove, who furthered his racing career with help from the up and coming Kiwi.
"I watched him develop there. We used to overlay his data with my data. I learnt a lot from Andre back then," Grove told Supercars.com.
"All the way back to then, nearly eight years ago running in the same team on the same weekend, to watching him now, he has really developed.
"I was watching him throughout 2020, and he's ready to go."
After some trying Supercars campaigns in 2015 (Super Black Racing) and 2016 (Lucas Dumbrell Motorsport), Heimgartner again shared a grid with Grove in 2017 when he returned to the one-make Porsche series.
Still aged just 25, Heimgartner is highly-regarded and has made 152 Supercars race starts.
Searching for an elusive maiden win, he got close in 2020, clinching a pole and podium at Sydney Motorsport Park before claiming another trophy at Tailem Bend.
Thinking back to his days sharing with Grove, Heimgartner revealed his incentive behind helping the veteran businessman sharpen his racing edge.
"It's funny, I sold him my data at the end of the year for an iPhone," Heimgartner told Supercars.com.
"I didn't have one at the time and I really wanted one. They had an old one I had my eyes on.
"I helped him out with data and improved his driving a bit. Mind you, I was only 16 or 17 at the time.
"It's funny now that it's gone full circle for us."