|Spring winner Kurt Busch is using new chassis this week at Martinsville|
#2-Brad Keselowski: Primary Chassis:PRS-914. Last Raced: Watkins Glen (finished 35th). Backup Chassis: PRS-910. Last Raced: Charlotte backup (not raced)
#3-Austin Dillon: will pilot Chassis No. 489 in the Goody's Headache Relief Shot 500 at Martinsville Speedway. This is a new Chevrolet SS that will be utilized for the first time this weekend.
#4-Kevin Harvick: Chassis No. 4-868: Kevin Harvick will pilot Chassis No. 4-864 at Martinsville (Va.) Speedway. Built new for 2014, Chassis 4-864 started 18th and finished seventh at Martinsville in April, its only time in competition.
#10-Danica Patrick: Chassis No. 10-865: Chassis No. 10-865 debuted in March at Martinsville (Va.) Speedway, where Patrick qualified 10th but finished 32nd. It was then used in July at New Hampshire Motor Speedway in Loudon, where she started 29th and finished 22nd.
#15-Clint Bowyer: Chassis No. 806 serves as the primary chassis for Bowyer at Martinsville. This chassis raced at Martinsville in April where Bowyer finished ninth. Chassis No. 787 serves as the back-up chassis. This chassis served as the primary chassis for Martin Truex Jr. in last October's Martinsville race where he finished 16th.
#16-Greg Biffle: Chassis RK-856 is the same car Biffle led laps with in the spring race and is also the same car he finished in the top 10 last fall at Martinsville. Backup Chassis: RK-867 Last ran Phoenix - finished 17th
#17-Ricky Stenhouse Jr.: Chassis RK-858 is the same chassis that the No. 17 team raced at Martinsville in the spring. Stenhouse had worked his way inside the top-20 before breaking a drive shaft. Backup Chassis: RK - 877 - last raced at Loudon - finished ninth.
#22-Joey Logano: Primary Chassis: PRS-913. Last Raced: Watkins Glen (finished sixth). Backup Chassis: PRS-901. Last Raced: Charlotte backup (not raced)
#24-Jeff Gordon: #24 crew chief Alan Gustafson has selected Hendrick Motorsports Chassis No. 24-902 for this Sunday's race. This chassis is new and has never been raced.
#27-Paul Menard: will utilize chassis No. 488 during the 263-mile event at Martinsville Speedway. This Chevrolet SS chassis is brand new to the Richard Childress Racing stable and will make its first laps during Friday's practice session at the paperclip-shaped track.
#31-Ryan Newman: will drive chassis No. 490 on Sunday at Martinsville Speedway. This is a new Chevrolet SS that will be utilized under race conditions for the first time this weekend. The No. 31 team tested with this car last week in a two-day Richard Childress Racing Cup team test at the .526-mile track.
#41-Kurt Busch: Chassis No. 909: Kurt Busch will pilot Chassis No. 909 in Sunday's Goody's Headache Relief Shot 500 at Martinsville (Va.) Speedway. Built new for 2014, Chassis No. 909 will see its first laps of competition this weekend.
#48-Jimmie Johnson: Crew chief Chad Knaus has selected Hendrick Motorsports Chassis No. 48-913 for this weekend's event in Martinsville. This is a brand new car. The backup car is Chassis No. 48-749, which was last raced in March at Martinsville, where Johnson finished second.
#55-Brian Vickers: Primary: 807 finished 16th at Martinsville on March 30. Backup: 785 has not raced.
#88-Dale Earnhardt Jr.: Crew chief Steve Letarte will unload Hendrick Motorsports Chassis No. 88-789 for this weekend's race at Martinsville Speedway. Earnhardt most recently raced this chassis to a third-place finish at Martinsville in April.
#99-Carl Edwards: Primary chassis RK-866 last ran at the Spring Martinsville race, starting eighth and finishing 13th. Backup chassis RK-886 last ran at Richmond, starting 10th and finishing 22nd.
- compiled by Jayski.com