Complex sentence: The TGV 001, finished on 24 March 1972, started tests on 4 April of the same year and will carry out 5227 runs, running half a million kilometres, braking the 300 km/h barrier 175 times.
Split into simpler sentences: The TGV 001, finished on 24 March 1972, began to undergo testing on 4 April of the same year. It would go on to carry out 5227 runs, running half a million kilometres and breaking the 300 km/h barrier 175 times.