nice! this is a good example of how you can see they used they re-pop vintage cast for these Classics spoilers. Originally in the 30th Anniversary 4 car set from around 1998. Almost looks like the new cast has a side-skirt/body kit on it.
By the way, there was one more car in that set, the Light My Firebird re-cast...since they just did the first 3, would expect to see that one in probably the next Classics release