Freshly released, the black Buick Grand National makes an appearance in the Adventure Force series diecast vehicles multi-pack boxed sets that are currently being sold (most commonly) at Walmart.
(but these multi-packs can be found online as well)
Produced by Maisto, these 1:64 scale cars come in an assorted variety of 9 cars in the box.
(Not all sets include the Buick GN)
These Adventure Force multi-packs come in sets of 5 cars as well.
(but we haven’t seen the Buick GN in any of them yet)