Model making, I know little about, I'm new
F1 however, different story! Ferrari changed their red in the late nighties, around the Schumacher era to both work with Marlboro, who they picked up as a sponsor, and because it looked nicer!
The modern red is much brighter than the older one, so if you only have one red and it's bright, put down a black undercoat which should bring out the deep red used in the late eighties. Try it out on a random piece of plastic first, one with a white undercoat and one with a black, compare it with photos of the time and you'll see which one works best for your model