Like the vintage model, it performs best when the engine is warmed up. This allows for excellent speed at low, medium, and high speeds. This model has a white light at the front and a red light at the rear. LIMA The CC 21000 is a series of dual-current AC electric locomotives developed based on the CC 6500. However, CC 21001 was delivered one and a half months earlier than CC 6501. These locomotives were used to haul trains such as the TEE Cisalpin on routes between France and Switzerland, such as the Paris-Vallorbe line. CC 21001 and CC 21002 conducted numerous test runs on the lines of the Alsace plain from 1972 to 1975, contributing to the development of pantographs for high-speed operation, which would be used daily by the future TGV S-E. In Alsace, in 1975, CC 21001, equipped with a two-stage pantograph, achieved a speed of 285 km/h, setting a world record at 25 kV 50 Hz.