. "The Kobalt 400 is a Monster Energy Cup Series race held annually at the Las Vegas Motor Speedway in the spring. It has been run since 1998 and is held in conjunction with an Xfinity Series race the preceding day. The race was sponsored by the [United_Auto_Works United Auto Workers] in conjunction with Chrysler from 2001 to 2008. It is the third race on the calendar."@en . . "Kobalt 400"@en . . "The Kobalt 400 is a Monster Energy Cup Series race held annually at the Las Vegas Motor Speedway in the spring. It has been run since 1998 and is held in conjunction with an Xfinity Series race the preceding day. The race was sponsored by the [United_Auto_Works United Auto Workers] in conjunction with Chrysler from 2001 to 2008. It is the third race on the calendar."@en .