 The 2000/2100 class were self-propelled diesel railcars operated by the State Transport Authority and its successors on the Adelaide rail network.The body shell design was based on the Budd SPV-2000, Metroliner and Amfleet cars but the 2000 class railcars have a slightly different curve to the Amfleet.Twelve 2000 powercars and eighteen 2100 class trailer cars were built.