Siemens is building 49 coaches for Caltrans and 88 for Illinois Department of Transportation (IDOT) at its plant in Sacramento.

Siemens replaced Nippon Sharyo as Sumitomo’s partner in 2017 to complete the $US 371m contract. The original contract was for double-deck coaches, but in 2015 a prototype coach built by Nippon Sharyo failed to pass a mandatory crash safety test.