The NTT INDYCAR SERIES, the Indianapolis-based open-wheel series, has released new details regarding the upcoming The Thermal Club $1 Million Challenge event at the Thermal Club near Palm Springs, California.

The non-points event will include a two-day open test, group qualifying sessions, two heat races and a 12-car "all-star" race with $1.756 million at stake--the largest purse for an INDYCAR SERIES race outside of the Indianapolis 500.

Additionally, the event will pair Thermal Club members with INDYCAR SERIES drivers. Members will be embedded with their respective teams during team meetings and have access to driver question-and-answer sessions, racecraft instruction and tips and use of authentic race team gear.

Qualifying for the event will divide the field into two groups, with each receiving a 12-minute session. The results of the qualifying sessions will set the field for two 20-minute heat races. The top six advancing cars from each heat race will make up the 12-car field for The Thermal Club $1 Million Challenge. The final will consist of 20 laps divided into two 10-lap sprint segments with a 10-minute "halftime" break following the completion of Lap 10.

For more information on the event format, visit indycar.com.