Most of my plastic promos are from the 1950's, because that's the decade that holds the most nostalgia for me, and the '50s promos are what I have concentrated most on collecting. Unfortunately, those old promos crack and warp, but for me, they have more charm than the most elaborate modern diecast.
As for real cars, I can only think of a couple that were made since 1979 that interest me.
Still hoping to see photos of your promo collection, new and old ones. Hope your new year is off to a good start Hamburger, and thanks for checking in.