still blending...

Whatever you do - don't use molding paste for an acrylics piece that you'll need to blend.  Molding paste adds a kind of texture you won't want.

reworking the main car

Acrylics, difficult to blend, can create a rough time for you when you're doing gradual light changes with an unusual color and showing reflections in the painting itself. I'm reworking the main car  for the 3rd time.