The California Car is the first generation of intercity railcars owned by the California Department of Transportation (Caltrans) and operated by Amtrak under the Amtrak California brand on intercity corridor routes in Northern and Central California. The cars were built in the mid-1990s for the Caltrans Division of Rail by Morrison–Knudsen and the American Passenger Rail Car Company (Amerail). The cars are similar in exterior dimensions to Amtrak's Superliner, but original in design to provide rolling stock suitable for California intercity services up to six hours, with more frequent stops than most other Amtrak routes. All cars were overhauled by Alstom at its Mare Island facility between 2009 and 2012.