John Holinger
Holinger Racing
The Gearbox Guru competed at selected events in 2023, splitting his seat time between TA2 and the National Trans- AM series, but enjoying his retro “four on the floor” experience. He ended up on the Circo Master Class podium at the first TA2 round at Winton, however had a couple of non-finishes under lights at Sydney Motorsport Park.
