There was only one colour for this car - orange.
That's the colour it is on the box lid and that's the colour my Beetle is. There simply is no better hue.
I'm spraying the body with Tamiya X-6 orange. Sadly, I couldn't get an aerosol, so the paint was thinned with car windscreen wash (it's what the military modellers recommend) over Halfords white primer. Trying to spray without the primer saw the paint puddle on the plastic surface, but while gives a better base than grey, so it's worth the effort.
The result is pleasingly matt. Not dead, but not shiny. I'd accept satin, but gloss always looks too toylike.
If I could have found a can of touch-up spray for my car I'd have used that, but since the aerosols I had mixed must be well over 20 years old, I suspect they might not be in the best condition.