Complex sentence: In March 2009, the government announced that it had authorised KiwiRail to invest $115m in new rolling stock for 20 locomotives ($75m), and carriages for Tranz Scenic ($40m).
Split into simpler sentences: In March 2009, the government announced that it had authorised KiwiRail to invest $115m in new rolling stock. These funds were allocated to the purchase of 20 new locomotives ($75m) and carriages for the Tranz Scenic services ($40m).