Three Swiss innovators converted an Aebi diesel truck into TERREN, a fully electric, solar-charged, 7-ton off-road vehicle. They drove it, 100% energy self-sufficient, from the Chilean Pacific coast to Ojos del Salado, the world's highest volcano, proving the viability of clean, heavy-duty e-mobility. Reaching 6,490 metres, they earned a verified Guinness World Record for the highest altitude ever reached in an electric truck, a historic milestone for e-mobility.