I want to spray paint my 1970 GS model in the same color as my big GS. So, where's the best place to get the paint to match my car in spray cans?
You could use Dupli-Color touch up paint in your cars color. When I was involved in miniature modeling, I did that all the time. Even used chrome paint pens on them. If you can’t find your color that way, any automotive paint supplier can mix it and you can use a Preval spray system to do it https://preval.com/
Hey Ray Check out this link. They might have your colour. https://mcwfinishes.com/shop/ols/categories/1968-1970-general-motors
I think, rather than trying to perfectly match my Seamist Green GS paint on a model I'm just going to use the Seamist model I already have and put a vinyl top on it as well as paint the interior black like mine. This model already has the GS455, not stage 1 emblems and also the BFG Radial TA tires like mine.
I think if you can cross-reference Buick colours with Chev colours you may find a match. Chev used some of the same colours, but named them differently. Model companies will not produce paints based on the Buick naming, but rather use the more common Chev names. It's all about sales.
Our local PPG store can make any color you want and put it in an aerosol can. Might be worth checking your local store.