Winner's Circle - 1:87 Scale Car

My son is a fan of Nascar racing.He has several different scales of cars.When we were shopping at Walmart we saw these 1:87 scale cars by Winner's Circle.The cars are attached to a black platform.There is a clear case that is placed over the car.You can either place the case with the car in the box that it came with or just leave the case out.There were several different Nascar drivers to choose from:Kasey Kane, Greg Biffle, Jamie McMurrey and Carl Edwards.We purchased one of each driver.Our son placed these cars on his book shelf with the other Nascar cars that he has.For the most part he leaves the cars alone but sometimes he does take the case out of the box and looks at the cars.However, he never plays with them.