Honda 27-01 Official

The next time you hear a high-revving Honda, listen closely. In the gap between 8,000 and 9,000 rpm, some say you can still hear the ghost of 27-01, screaming into the night, a V10 that never got to sing.

To speak of 27-01 is to speak of a moment in time: the early 1990s. Honda was at its peak—dominating Formula 1 with McLaren, selling the NSX to a stunned Ferrari, and perfecting the art of the high-revving engine. But within Honda’s Tochigi R&D center, a secret sub-group, code-named Project 27 , was tasked with something heretical: build a halo car that would make the NSX look conservative. honda 27-01

The brief, as reconstructed from interviews with retired engineers, was audacious. Mid-engine, yes. But instead of a V6, 27-01 would house a bespoke, 3.5-liter V10. Why a V10? Because Honda’s F1 engineers had just finished studying the life cycle of a V10 crank shaft at 22,000 rpm (in test cells). They wanted a road engine that screamed to 12,000 rpm—a sound described by one witness as “a sheet of titanium being torn in half by an angel.” The next time you hear a high-revving Honda, listen closely

So what happened to 27-01?

The chassis was reportedly crushed. The V10 engines were detuned, shoved into a drawer, and forgotten. Or so we thought. Honda was at its peak—dominating Formula 1 with

Honda 27-01 is the ultimate “what if.” It represents the moment Honda could have beaten the McLaren F1 to the punch, could have invented the active-suspension hypercar a decade before Ferrari. Instead, it remains a phantom—a code name for ambition that was too pure, too expensive, and too early.

The story goes that on a cold night in December 1993, the prototype was secretly tested at the Suzuka Circuit’s west course. The test driver, a man known only as “Yama-san,” completed seven laps. On the seventh, a telemetry spike—rear-left actuator failure. The car spun at 130 mph, hitting a tire barrier. Yama-san walked away. The car did not.