Unbreakable
BMW Motorrad Customizing Championship winner. Exhibited at BMW Motorrad Welt.
Quanta R was conceived as a vehicle with no direct analogue in the market. Not a conventional custom car, not a motorcycle-derived machine in the usual sense, but an entirely new concept. The idea: combine the aggression, adrenaline and open emotional character of a motorcycle with the stability, control and confidence of a high-performance car.
The project was created for presentation at the Geneva International Motor Show and the Goodwood Festival of Speed. Public descriptions point to a Subaru-based all-wheel-drive platform, a tuned 2.5-liter turbocharged boxer engine, and power adjustable up to 600 horsepower. Combined with low vehicle weight, the project delivers hypercar-level acceleration and a completely unique driving experience.
The body was developed as a hand-built aluminum structure with a futuristic silhouette and dramatic road presence. Open-wheel proportions, aggressive stance, sculptural surfacing, carbon elements, forged wheels, oversized tires — Quanta R was never intended to be just a showpiece. It was designed as a fully realized vision of what happens when engineering ambition is not limited by standard formats.
Years after its presentation, Quanta R remains an important reference point for those who follow custom engineering and boundary-pushing builds. The project reflects exactly what makes Iron Custom Motors different: deep technical competence, artistic discipline and the courage to build something the world has not seen before.








This build explains the standard behind the Cascais workshop today: disciplined engineering, visual taste, documentation and the ability to solve unusual motorcycle problems.
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BMW Motorrad Customizing Championship winner. Exhibited at BMW Motorrad Welt.
World speed record motorcycle. Class 350APS-VG, Bonneville Salt Flats. Vintage 1953 IZH-49 platform.
Retro-futurist build. AMD World Championship 2018, world's first spoked hubless front wheel.
Open the related page for service context, booking options or the broader Iron Custom Motors story.
Open the related page for service context, booking options or the broader Iron Custom Motors story.
Open the related page for service context, booking options or the broader Iron Custom Motors story.
Open the related page for service context, booking options or the broader Iron Custom Motors story.
Each project is documented as an engineering and brand reference, not just a gallery item.
Geneva · Goodwood Concept
The public result or recognition attached to this motorcycle.
Concept Vehicle · Hybrid Bike-Car
The technical or cultural class this project belongs to.
Geneva Motor Show · Goodwood Festival of Speed
Where the project lived, competed, was shown or became part of the Iron Custom Motors story.
Iron Custom Motors is now in Cascais. Same engineering team, same standard. Service, parts, custom builds.