On 6 November 2017 Rheinmetall announced the company was a main sponsor for high-altitude record-breaking attempt that had commenced that day. Using two HX range trucks (a 340 hp 4x4 HX40M and a 440 hp 6x6 HX58) the expedition aimed to reach the highest point on earth accessible to motor vehicles - the 6890 m-tall Ojos del Salado , the world's highest active volcano, located on the border of Chile and Argentina. In order to set a new world record the vehicles would have to reach an altitude of at least 6,690 metres above sea level. On December 19 it was announced the altitude record attempt had been called off at a height of 6,150 m for a combination of factors including an insurmountable rock barrier and adverse weather conditions. The team had, however, built two refuge huts during their ascent, the highest of these built at 6,100 m, a record.