These are set only Chevy Monte Carlo "Dale Earnhardt Jr." #8 and Chevy Monte Caro "Michael Waltrip" #15 Stock Cars from the NAPA Dealer excluse "NAPA Challenge" race set #B5721 produced back in 2003 and long since out production. They reside on the 440-X2 (HP-X) wide (pan) chassis which can also be used for other wide bodies. These chassis have long been known for their consistency and durability. They are new never used in our own design protector box.
Of the 2 variations of this car in different race sets, this is the only variation that has a true to life paint scheme.
Whether you are a collector or a racer this car would make a great addition at this price.