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Polish students build car that can travel 837 km on one litre of petrol

07.10.2026 09:25
The Iron Warriors student team at the Łódź University of Technology in central Poland has set two national records for energy-efficient vehicles, with its petrol prototype achieving 837 kilometres per litre and its electric vehicle the equivalent of 2,267 kilometres per litre. 
Mikołaj Marczyk, Aleksandra Woźniak
Mikołaj Marczyk, Aleksandra WoźniakPAP/Marian Zubrzycki

The students have developed two highly energy-efficient three-wheeled prototypes: Eco Arrow 3, powered by petrol, and Eco Arrow 2 Electric, powered by electricity. 

The prototypes are designed to minimise energy consumption through their low weight and low aerodynamic drag. 

Both vehicles are single-seater, three-wheeled prototypes with streamlined, aerodynamic bodies. The driver operates the vehicle while lying down. 

They are made entirely of carbon fibre and weigh less than 50 kilograms. 

The petrol prototype uses a modified engine from a petrol-powered brush cutter, while the electric vehicle uses a motor normally used in bicycles. 

Team leader Hubert Pacyna said the team continues to develop both vehicles, making improvements aimed at further reducing fuel and electricity consumption. 

The Iron Warriors team has been turning academic knowledge into practice for almost 15 years by developing such vehicles. 

The students are currently working on a new vehicle, focusing on aerodynamics and bodywork. They hope the experience gained through the project will later be useful to automotive companies. 

On Tuesday, the students exchanged experiences with European rally champion Mikołaj Marczyk, who is also a Guinness World Record holder. He has driven 1,338 kilometres on a single charge in a passenger car. 

Marczyk said he had come to learn from the students and exchange experiences, and stressed the importance of passion and the potential for Poland to compete in the global automotive technology race. 

(sp) 

Source: PAP