TGV 001 (Train Grande Vitesse 001) was a high-speed railway train built in France. It was the first TGV prototype and was commissioned in 1969, to begin testing in 1972. The TGV 001 was an experimental gas turbine-electric locomotive-powered trainset built by Alstom to break speed records between 250–300 kilometres per hour (160–190 mph). The experimental train was part of a vast research program on high rail speeds. This program covered all technical aspects, principally traction, the behaviour of the vehicles, braking, aerodynamics and signalling. Originally, two trains were to be built, but only one was produced. The second was to be a tilting train equipped with an active tilting system, but was abandoned owing to technical difficulties.
This turbotrain was built in a radically different fashion than its predecessors (the ETG and the RTG); it was composed of two locomotives and three carriages, all with driving axles. This concept as well as the shape of the TGV 001 was kept when designing the future TGV.