Pops Racer, born Daisuke Hibiki in the Japanese iteration, transitions from a corporate automotive engineer crafting cutting-edge racing vehicles to a figure shaped by tragedy and resilience. After his eldest son Rex perished testing the Mach 5, he retrofitted the car with the "Safety Seven" system—seven defensive mechanisms, each mapped to buttons A through G on the steering wheel—to safeguard future drivers and preserve Rex’s memory. Initially wary of his younger son Speed entering professional racing, fearing a repeat loss, he gradually shifts from overprotective reluctance to steadfast support, mentoring Speed through the risks of the sport. Leading Hibiki Motors in the English adaptation, the family upholds their engineering heritage, blending technical ingenuity with personal legacy. Pops’ skills span beyond automotive design into aeronautics, evidenced by his construction of a helicopter utilized by Speed’s ally Trixie. His post-tragedy retirement included mastering metallurgy via correspondence courses, deepening his technical repertoire. Evolving from guarded apprehension to trusting collaboration, his dynamic with Speed mirrors his dual identity as both a cautious guardian and visionary innovator. The series’ localization merges cultural elements, retaining "Racer" as the family surname while preserving the team’s original Japanese name, underscoring the narrative’s transnational roots.