The Motor Max 1987 Buick Regal Boxed Set featured 4 diecast cars (silver, blue, white, black) in 1:24 scale.
Freewheeling, opening doors, opening hood, & opening trunk lid.
These aren’t too bad for a scale reproduction of the Turbo Buick Regal, but don’t expect them to be anywhere near close to the nicety of the versions that GMP made.
Here’s some other items if you’re shopping for Buick merch:
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