|Jimmie Johnson is using winning Pocono chassis this week at Fontana|
#3-Austin Dillon: will pilot Chassis No. 457 in the Auto Club 400 at Auto Club Speedway. This is a new Chevrolet SS that will be utilized for the first time under race conditions this weekend.
#4-Kevin Harvick: will pilot Chassis No. 4-850 at Auto Club Speedway in Fontana, Calif. Built new for 2014, Chassis 4-850 will see its first laps of competition this weekend.
#5-Kasey Kahne: Crew chief Kenny Francis will unload Hendrick Motorsports Chassis No. 5-820 for Sunday's event at Fontana. Kahne raced this car twice last year, finishing 15th at Kansas Speedway in October and then 13th at Homestead-Miami Speedway in November.
#10-Danica Patrick: Chassis No. 10-828 was used for the first time in November 2013 at Homestead-Miami Speedway, where Patrick started 24th and finished 20th. Patrick then drove the car earlier this month at Las Vegas Motor Speedway where she started 22nd and finished 21st.
#15-Clint Bowyer: Chassis No. 798 serves as the primary chassis for Bowyer at Auto Club Speedway. It's a new Chassis for the 2014 season and finished 13th at Phoenix a few weeks ago. Chassis No. 800 serves as the back-up chassis. This is also a new chassis for 2014.
#16-Greg Biffle: Primary Chassis: RK-890 Brand new chassis. Backup Chassis: RK-844 Last ran Bristol - finished 9th.
#17-Ricky Stenhouse Jr.: Primary Chassis: RK- 893 - new chassis. Backup Chassis: RK-860 - last raced at Texas - finished 16th.
#22-Joey Logano: Primary Chassis: PRS-868 - Last Raced: New chassis. Backup Chassis: PRS-865. Last Raced: Homestead, 2013 (finished 8th)
#24-Jeff Gordon: #24 crew chief Alan Gustafson has selected Hendrick Motorsports Chassis No. 24-861 for this Sunday's 400-miler in Southern California. This is a new chassis that has never been raced.
#27-Paul Menard: will pilot chassis No. 461 in the Auto Club 400 at Auto Club Speedway. This No. 27 Chevrolet SS is new to the RCR fleet and will make its first laps this weekend at ACS.
#31-Ryan Newman: will drive chassis No. 462 in Sunday's Auto Club 400 at Auto Club Speedway. This No. 31 Chevrolet SS is brand new in competition and will make its debut at the track for the first time during Friday's practice and qualifying activities.
#33-Brian Scott: will wheel chassis No. 460 in this weekend's NASCAR Sprint Cup series race at Auto Club Speedway. This Chevrolet SS is newly constructed by the Richard Childress Racing crew and will be utilized for the first time under race conditions this weekend.
#41-Kurt Busch: will pilot Chassis No. 748 in Sunday's Auto Club 400 at Auto Club Speedway in Fontana, Calif. In five previous starts, all as the No. 39 for Stewart-Haas Racing (SHR), it has one top-five finish and four top-10s with a best of fifth at Atlanta Motor Speedway. Chassis No. 748 led laps in three of its five starts.
#48-Jimmie Johnson: Crew chief Chad Knaus has selected Hendrick Motorsports Chassis No. 48-799 for California. Johnson notably drove this chassis to Victory Lane at Pocono Raceway last August and to a fifth-place result at Chicagoland Speedway last September. The backup car is Chassis No. 48-784 which Johnson last raced in June 2013 at Michigan International Speedway.
#55-Brian Vickers: Primary 797 has not raced. Backup 779 - finished third at Atlanta in 2013 with Martin Truex Jr. behind the wheel.
#88-Dale Earnhardt Jr.: Crew chief Steve Letarte will unload Hendrick Motorsports Chassis No. 88-810 for this weekend's 400-mile event at ACS. Earnhardt most recently raced this chassis to a 15th-place finish at Charlotte (N.C.) Motor Speedway in October 2013.
#99-Carl Edwards: Primary chassis RK-891 is a new chassis. Backup chassis RK-861 was last used in 2014 as a backup at Vegas and as a primary in Kansas last October finishing fifth.
- Compiled by Jayski.com