Not all teams announce their weekly race chassis'. Here is a list of those teams that do reveal the chassis in the teams race preview:
#1- Jamie McMurray - Crew Chief Kevin “Bono” Manion and the No. 1 McDonald’s team will bring Chassis #1208 to Michigan International Speedway this weekend. This chassis has raced this season at Las Vegas and Kansas finishing eighth and 14th, respectively. Most recently, this chassis raced in the Coca-Cola 600 at Charlotte Motor Speedway, finishing 21st.
#2- Brad Keselowski - The No. 2 Miller Lite Dodge Charger team will race chassis PRS-820 during Sunday’s Quicken Loans 400 at Michigan International Speedway (MIS). Brad Keselowski last drove this chassis to a 36th-place finish at Texas Motor Speedway in April, after suffering fuel issues while running solidly inside the top five. The featured tag line on the bumper of Keselowski's “Blue Deuce” this weekend at Michigan will be “Home Sweet Home.”
#5- Kasey Kahne - Crew chief Kenny Francis has selected Hendrick Motorsports Chassis No. 5-724 for Sunday’s race at Michigan. Kahne first raced this car in May during the 600-mile Cup event at Charlotte (N.C.) Motor Speedway when he earned his first win with Hendrick Motorsports.
#9- Marcos Ambrose - The No. 9 RPM team has prepared chassis No. 784 for this weekend’s NASCAR Sprint Cup Series Race at Michigan International Speedway. This Stanley Ford was run previously this season at California and Kansas.
#14-Tony Stewart - Chassis No. 14-706: This car debuted in spectacular fashion in March at Auto Club Speedway in Fontana, Calif., as Stewart took Chassis No. 14-706 from its ninth-place starting spot to lead twice for 42 laps en route to the win in the rain-shortened race. Prior to Fontana, the car spent numerous hours in the wind tunnel. It is a clone to Chassis No. 14-640, which won round three at Las Vegas Motor Speedway. No. 14-706’s second start, in April at Kansas Speedway in Kansas City, was a bit quieter than its debut race. It started 23rd and gained 10 spots to finish 13th. Its third and most recent start came in the NASCAR Sprint Cup Series’ longest race – the Coca-Cola 600 at Charlotte Motor Speedway. There, Stewart qualified 21st and finished 25th as Chassis No. 14-706 proved to be a handful throughout the 400-lap contest.
#15- Clint Bowyer - Primary Chassis No. 727 has raced twice in 2012. It started 11th and finished 13 at Fontana and started 26th and finished 11th at Darlington. Chassis No. 721 is the backup and previously served backup duty at Las Vegas, California, Texas, Kansas, Darlington, All-Star, Charlotte and Pocono but never raced.
#16- Greg Biffle - Biffle will race primary chassis RK-809 at Michigan, it last ran at Charlotte, finished 4th.
#17- Matt Kenseth - Kenseth's primary chassis this week is RK-808, a brand new chassis.
#21- Trevor Bayne - Donnie Wingo, crew chief of the Motorcraft/Quick Lane Fusion, has chosen the same Ford Fusion that Bayne raced at Las Vegas and Texas Motor Speedway.
The car finished ninth at Vegas and was fast at Texas before a brush with the wall left the team with a disappointing finish.
#22- A J Allmendinger - Crew Chief Todd Gordon said "We're preparing to utilize chassis ‘PRS 821' at Michigan in Thursday's testing and use it for the remainder of the weekend."
#24- Jeff Gordon - Jeff Gordon will race HMS chassis 24-718 at Michigan. The car finished 21st at Kansas and seventh at Charlotte in 2012.
#27- Paul Menard - Paul Menard will pilot Chassis No. 397 from the Richard Childress Racing NASCAR Sprint Cup Series stable. Built new for 2012 competition, this No. 27 Chevrolet will turn its first laps at MIS.
#29- Kevin Harvick - Kevin Harvick will pilot Chassis No. 378 from the Richard Childress Racing NASCAR Sprint Cup Series stable. The Bakersfield, Calif., native drove this RCR racer earlier this season at Kansas Speedway where he brought home a sixth-place finish. This chassis was also used in competition twice during the 2011 season when Harvick captured a second-place finish at Chicagoland Speedway in September and a sixth-place finish at Kansas Speedway in October.
#31- Jeff Burton - Jeff Burton will race chassis No. 393 from the Richard Childress Racing NASCAR Sprint Cup Series stable this weekend. This No. 31 Chevrolet, built new for the 2012 season, was utilized twice this year at Auto Club Speedway in March (started-19th, finished-22nd) and Darlington Raceway in May (started-10th, finished-18th).
#33- Austin Dillon - Austin Dillon will pilot Chassis No. 396 from the Richard Childress Racing NASCAR Sprint Cup Series stable. This Chevrolet is a new addition to the RCR fleet and will be put through its first paces this weekend.
#36- Dave Blaney - Blaney will drive the No. 293 chassis, which he drove three times this season and five times during the 2011 season. The Harford, Ohio native’s best start with the No. 293 chassis was 17th at Richmond and best finish was 23rd at Phoenix this season. TBR purchased the chassis from Richard Childress Racing, where Jeff Burton drove the chassis prior to its debut with TBR.
#39- Ryan Newman - Chassis No. 39-727 will make its second start this season at Michigan International Speedway in Brooklyn. The chassis made its debut three
weeks ago in the Coca-Cola 600 NASCAR Sprint Cup Series race at Charlotte Motor Speedway. Newman started 16th and struggled with a tight-handling racecar before finishing 14th.
#42- Juan Pablo Montoya - Crew Chief Chris “Shine” Heroy and the No. 42 Target team will bring Chassis #1209 to Michigan International Speedway this weekend. This is the first race for this chassis.
#43- Aric Almirola - The team has prepared chassis No. 752 for the Michigan race. This chassis ran previously this season in the Sprint Showdown at Charlotte and at Kansas and Fontana. The car will carry the yellow and black taxi cab paint scheme of Medallion Financial.
#48- Jimmie Johnson - Chassis No. 720 serves as the primary for Johnson at Michigan. Chassis No. 669 serves as the backup. The primary car won the All Star race and finished third at Kansas this year.
#55- Mark Martin - Primary Chassis No.734, this is the first race in 2012 for this car. Backup Chassis 726 raced in Fontana and Darlington in 2012.
#88- Dale Earnhardt Jr - This weekend, crew chief Steve Letarte and the No. 88 crew will unload Hendrick Motorsports Chassis No. 88-716. Earnhardt most recently raced this chassis to a seventh-place finish at Kansas Speedway in April.
#99- Carl Edwards - The No. 99 Fastenal Blue Team will be unloading chassis 782. Edwards last raced this car at the All Star race where he had an engine failure. He also raced it at California where he finished fifth.
- Reported in Team News/Press Releases