Croatian automaker Rimac, renowned for its high-performance electric hypercars, is now venturing beyond traditional electric powertrains. Founder Mate Rimac disclosed to Autocar that his engineering team is actively experimenting with nanotube technology, a novel approach that involves generating electricity by heating various liquid fuels. This groundbreaking initiative is part of Rimac’s broader exploration into alternative propulsion methods.
Nanotubes, in this context, refer to a system that heats chemically diverse liquid fuels, such as diesel, liquefied petroleum gas (LPG), and hydrogen, to produce the necessary electricity for a vehicle’s propulsion. Early tests have showcased an impressive 80% operating efficiency, marking a significant step forward in Rimac’s pursuit of innovative powertrain solutions.
The Croatian automaker is collaborating on this technology with an undisclosed start-up, and while it’s in the early stages of development, the potential implications for the automotive industry are substantial. If successfully implemented, nanotube-powered cars could provide an alternative to conventional battery-powered vehicles, especially in the realm of sports cars, where the reduction of the heavy battery pack is a crucial consideration.
However, this innovative approach comes with its set of trade-offs. While replacing the battery pack could result in a substantial weight reduction, the system would emit carbon dioxide (CO2). Rimac acknowledges this environmental impact, asserting that it would be lower than that of a traditional internal combustion engine, though it might not align with stringent zero-emission regulations.
Notably, Rimac has diversified its portfolio with non-electric projects, stemming from its acquisition of a controlling stake in Bugatti in June 2021. Engineers from both Rimac and Bugatti are collaboratively developing a hypercar to succeed the Chiron, departing from the electric paradigm. Mate Rimac has emphasized that Rimac isn’t exclusively committed to electric propulsion, stating, “Rimac isn’t exclusively electric — it’s doing whatever is most exciting at the time.” The forthcoming hypercar is set to feature a “totally bonkers” hybrid system, representing a fusion of combustion and electrification.
This foray into nanotube technology and the development of a unique hybrid hypercar underscore Rimac’s commitment to pushing the boundaries of automotive innovation. As the automotive landscape evolves, Rimac’s versatile approach positions it at the forefront of pioneering solutions that extend beyond conventional electric vehicles.