Acelas Meet. On the morning of Tuesday, March 4, 2025, fortunate timing brought Amtrak 846 (AMTK/Alstom 2104-2141 TS18) and Amtrak 2155 (AMTK 2023-2025 TS14) near the Sawtooth Bridge in Kearny, NJ. As the pace of deliveries, testing, and crew and mechanical training continues, rumors abound about a revenue debut in the near future. While some have expressed impatience, Amtrak and Alstom have been diligently working together to refine the product so that it will ultimately perform properly during its life cycle.