Diesel locomotive were classified as DET 1 and DET 2 (). Due to shortage of petrol products during World War I, they remained unused for regular service in Germany. In 1922, they were sold to Swiss Compagnie du Chemin de fer Régional du Val-de-Travers (), where they were used in regular service up to the electrification of the line in 1944. Afterwards, the company kept them in service as boosters till 1965. Fiat claims a first Italian diesel–electric locomotive built in 1922, but little detail is available. A Fiat-TIBB diesel–locomotive "A", of 440CV, is reported to have entered service on the Ferrovie
Terra Nova 1260HP diesel hydraulic locomotive reduced level of pollution in line with European Standards for Environmental Protection. The Terra Nova locomotive participated at 2014 edition of Innotrans Berlin Fair, the largest exhibition of rolling stock worldwide, attracting approx. 6 million visitors. Terra Nova 1260HP diesel hydraulic locomotive The Terra Nova locomotive is a diesel mechanical locomotive used mainly for heavy shunting operations and light line service. It is produced at Electroputere VFU-Reloc Craiova, Romania and it had its official launching in May 2014, having 4 axles and the possibility to be adapted to all types of gauges. SC. RELOC SA and Electroputere VFU became part