Niki Lanza, occasionally referred to as Niki Lauda, functions as a mentor in the narrative. An Austrian Formula One world champion, he is distinguished by a mask covering facial injuries from a racing accident, cultivating an enigmatic presence. His blonde hair and blue eyes create a physical contrast with other characters.

After protagonist Takaya Todoroki suffers a career-threatening crash and loses confidence, Lanza visits him in the hospital. He encourages Takaya to return to racing and provides an opportunity to test a new prototype vehicle. This intervention directly results in Takaya joining the Katori Motors racing team. While not consistently present, Lanza periodically monitors Takaya's progress and development as a driver. His role remains primarily that of an influential catalyst and off-track guide rather than an active participant in the main storyline.

The character draws clear inspiration from real-life driver Niki Lauda, specifically referencing Lauda's 1976 crash and subsequent protective headgear. Within the story, he is depicted as an established champion interacting with other characters modeled after 1970s Formula One drivers, including Mario Andretti, Emerson Fittipaldi, and James Hunt. The narrative does not explore his background, personal history, or significant character development beyond his mentorship role, maintaining his identity as a masked, internationally renowned figure focused on guiding the protagonist's racing career.