The Diecast Zone · Model Car Club Since 1994
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(PIC) Not mine, but some interesting Buick diecasts...

I think the yellow 1950 may actually be pressed steel with friction drive.
I looks like the Fifties model that came out in the 1980's as an homage to the old Japanese tinplate cars of the fifties and sixties. There was also a 1950 Cadillac, a T-Bird, and a Corvette. I had the Buick in green, still have the Cadillac 2-door in pink with white roof. They even came with a replica vehicle registration. Later on there were some Chinese reissue/ripoff versions, can't tell which this one is without looking at the base.