Original Commentary
If that line of thinking works with men going through mid-life-crises when they go car shopping - then it can work for Brisbane.

Modern Commentary
In WarHammer 40k, the Orks have latent psychic abilities. Their subconscious ideas - which are belligerent football-hooligan nonsense - are what makes their things work.
There is no underlying technology. Red vehicles go faster because they believe that red vehicles go faster. "The red ones go faster" is one of those recurring punchlines there.
When we wrote this comic, we were unaware of that part of WarHammer. We barely knew that WarHammer was a thing. We did not borrow that line from Warhammer.
We borrowed it from Sushi Girl, an American manga by Tavisha Wolfgarth-Simons and Rikki Simons, better known for their Reality Check and @Tavicat comics. They, almost certainly, borrowed it from WarHammer and we lifted it from them without knowing the true source. - Terrence